The difference between stupidity and genius is that genius has its limits.

I think and think for months and years. Ninety-nine times, the conclusion is false. The hundredth time I am right.

Believe you are defeated, believe it long enough, and it is likely to become a fact

Falling in love is not at all the most stupid thing that people do but gravitation cannot be held responsible for it.

Neither a lofty degree of intelligence nor imagination nor both together go to the making of genius. Love, love, love, that is the soul of genius.

Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world

Your time is limited, don’t waste it living someone else’s life. Don’t be trapped by dogma, which is living the result of other people’s thinking. Don’t let the noise of other’s opinion drowned your own...

Hitch your wagon to a star.

I want to know [God’s] thoughts, the rest are details.

Whenever you are to do a thing, though it can never be known but to yourself, ask yourself how you would act were all the world looking at you, and act accordingly.

Any man who reads too much and uses his own brain too little falls into lazy habits of thinking

A mind always employed is always happy. This is the true secret, the grand recipe, for felicity.

Science is a wonderful thing if one does not have to earn one’s living at it.

He who permits himself to tell a lie once, finds it much easier to do it a second and a third time till at length it becomes habitual.

You can fool all the people some of the time, and some of the people all the time, but you cannot fool all the people all the time.

Be not afraid of greatness: some are born great, some achieve greatness, and some have greatness thrust upon them.

If you can’t stand the heat, get out of the kitchen.

In my stars I am above thee, but be not afraid of greatness. Some are born great, some achieve greatness, and some have greatness thrust upon ’em.

Love is not what the mind thinks, but what the heart feels.

My words fly up, my thoughts remain below: Words without thoughts never to heaven go

I cannot believe that God would choose to play dice with the universe.

A thing of beauty is a joy forever; its loveliness increases; it will never pass into nothingness.