I have been trying to point out that in our lives chance may have an astonishing influence and, if I may offer advice to the young laboratory worker, it would be this – never to...

Chemistry has been termed by the physicist as the messy part of physics, but that is no reason why the physicists should be permitted to make a mess of chemistry when they invade it.

So if I could just go back now to something which I am sure we should cover here regarding our original scenario: we have, in fact, four ways – four major potential lines of research.

But, as we have before been led to remark, most of Mr. Darwin’s statements elude, by their vagueness and incompleteness, the test of Natural History facts.

Even if severe wounds are given, the Indian has many chances in his favor, for his organization is somewhat different from that of white men, and he recovers easily from wounds that would kill any...

There is something sublime about its aloofness from and its indifference to its external environment.

Such Roots as are soft, your best way is to dry in the Sun, or else hang them up in the Chimney corner upon a string; as for such as are hard you may dry...

The interior of Mexico consists of a mass of volcanic rocks, thrust up to a great height above the sea-level.

I think you know that I classify science as British science, American science, and everybody else.

I watched what method Nature might take, with intention of subduing the symptom by treading in her footsteps.

It is the lone worker who makes the first advance in a subject; the details may be worked out by a team, but the prime idea is due to enterprise, thought, and perception of an...

In the first place, the preparation of the Nobel lecture which I am to give has shown me, even more clearly than I knew before, how many others share with me, often, indeed, have anticipated...

Stan and I funded the first phase of the work ourselves. It was secret.

Cuvier had preceded Lamarck in specifying the kinds and degrees of variation, which his own observations and critical judgment of the reports of others led him to admit.

Every one knows how the snow lies in the valleys of the Alps, forming a plain which slopes gradually downward towards the outlet Imagine such a valley ten miles across, with just such a sloping...

To-day it appears as though it may well be altogether abolished in the future as it has to some extent been mitigated in the past by the unceasing, and as it now appears, unlimited ascent...

The Barks of Trees are best gathered in the Spring, if it be of great Trees, as Oaks or the like, because then they come easiest off, and so you may dry them if you...

The journey and excursions in Mexico which have originated the narrative and remarks contained in this volume were made in the months of March, April, May, and June of 1856, for the most part on...

If you assume that it was a valid experiment, then its disintegration reveals a very substantial part of what has been found since then, including the fact that you can get heat generation at high...

In writing the history of a disease, every philosophical hypothesis whatsoever, that has previously occupied the mind of the author, should lie in abeyance.

One sometimes finds what one is not looking for.

It is curious to reflect, for example, upon the remarkable legend of the Philosopher’s Stone, one of the oldest and most universal beliefs, the origin of which, however far back we penetrate into the records...

The problem is that replacement of Quantum Mechanics by Quantum Field Theory is still very demanding.

Every step in the progress of this study has tended to obliterate the technical barriers by which logicians have sought to separate the inquiries relating to the several parts of man’s nature.

Everything that is really Mexican is either Aztec or Spanish.

With all our mastery over the powers of Nature we have adhered to the view that the struggle for existence is a permanent and necessary condition of life.

The Herbs ought to be distilled when they are in their greatest vigor, and so ought the Flowers also.

The plateau of Mexico is 8,000 feet high, and that of Puebla 9,000 feet.

It doesn’t matter whether you can or cannot achieve high temperature superconductivity or fuel cells, they will always be on the list because if you could achieve them they would be extremely valuable.

It is my nature to thin where others read.

Rest assured that whatever station of life we are placed, princely or lowly, it contains the lessons and experiences necessary at the moment for our evolution, and gives us the best advantage for the development...

Man cannot influence in this respect the atomic forces of Nature.

Usually, if you have a new idea, you very rarely break through to anything like recognizable development or implementation of that idea the first time around – it takes two or three goes for the...

Manifold subsequent experience has led to a truer appreciation and a more moderate estimate of the importance of the dependence of one living being upon another.

I am afraid the Spanish American has not always a very strict regard for truth.

American science is much more organized, much more hierarchical than British science has been.

Thus have you the way of making Conserves, the way of keeping of them is in Earthen pots.

There are even many huts built entirely of the universal aloe.

It has been suggested at various times that I should start an operation in the United Kingdom but – bearing in mind my age and medical history – I think this would be not a...

Lastly, he must remember that he himself hath no exemption from the common lot, but that he is bound by the same laws of mortality, and liable to the same ailments and afflictions with his...

The main reason for the failure of the modern medical science is that it is dealing with results and not causes. Nothing more than the patching up of those attacked and the burying of those...

Nature is in austere mood, even terrifying, withal majestically beautiful.

You see, I am a very conventional scientist, really.

Mr. Darwin contributes some striking and ingenious instances of the way in which the principle partially affects the chain, or rather network of life, even to the total obliteration of certain meshes.

If you are a married man resident in Cuba, you cannot get a passport to go to the next town without your wife’s permission in writing.

At the moment I am taking a very careful look at some of the work which we have done in the past.

Waters are distilled out of Herbs, Flowers, Fruits, and Roots.

We are at last on the high lands of Mexico, the districts which at least three different races have chosen to settle in, neglecting the fertile country below.

It is not necessarily true that expensive experiments are not worthwhile doing but there are plenty of rather cheap experiments which are certainly worth doing.

Nothing in medicine is so insignificant as to merit attention.