The scientific man does not aim at an immediate result. He does not expect that his advanced ideas will be readily taken up. His work is like that of the planter—for the future. His duty...

I do not think you can name many great inventions that have been made by married men.

I came from Paris in the Spring of 1884, and was brought in intimate contact with him [Thomas Edison]. We experimented day and night, holidays not excepted. His existence was made up of alternate periods...

The recurrence of a phenomenon like [Thomas] Edison is not very likely. The profound change of conditions and the ever increasing necessity of theoretical training would seem to make it impossible. He will occupy a...

The progressive development of man is vitally dependent on invention. It is the most important product of his creative brain.

Science is opposed to theological dogmas because science is founded on fact. To me, the universe is simply a great machine which never came into being and never will end. The human being is no...

I am part of a light, and it is the music. The Light fills my six senses: I see it, hear, feel, smell, touch and think. Thinking of it means my sixth sense. Particles of...

The year 2100 will see eugenics universally established. In past ages, the law governing the survival of the fittest roughly weeded out the less desirable strains. Then man’s new sense of pity began to interfere...

His [Thomas Edison] method was inefficient in the extreme, for an immense ground had to be covered to get anything at all unless blind chance intervened and, at first, I was almost a sorry witness...

Fights between individuals, as well as governments and nations, invariably result from misunderstandings in the broadest interpretation of this term. Misunderstandings are always caused by the inability of appreciating one another’s point of view. This...

One must be sane to think clearly, but one can think deeply and be quite insane.

Today the most civilized countries of the world spend a maximum of their income on war and a minimum on education. The twenty-first century will reverse this order. It will be more glorious to fight...

If he [Thomas Edison] had a needle to find in a haystack, he would not stop to reason where it was most likely to be, but would proceed at once with the feverish diligence of...

Edison was by far the most successful and, probably, the last exponent of the purely empirical method of investigation. Everything he achieved was the result of persistent trials and experiments often performed at random but...

The day science begins to study non-physical phenomena, it will make more progress in one decade than in all the previous centuries of its existence.

The idea of atomic energy is illusionary but it has taken so powerful a hold on the minds, that although I have preached against it for twenty-five years, there are still some who believe it...

The scientists of today think deeply instead of clearly. One must be sane to think clearly, but one can think deeply and be quite insane.

The present is theirs; the future, for which I really worked, is mine.

Life is and will ever remain an equation incapable of solution, but it contains certain known factors.

You may live to see man-made horrors beyond your comprehension.

We crave for new sensations but soon become indifferent to them. The wonders of yesterday are today common occurrences