A discovery is said to be an accident meeting a prepared mind..

The key to happiness is not to get more, but to enjoy what we have and to fill the empty frame of our lives instead of enlarging it..

Think boldly. Don't be afraid of making mistakes. Don't miss small details, keep your eyes open and be modest in everything except your aims..

Nature is one. It is not divided into physics, chemistry, quantum mechanics..

Discovery consists of looking at the same thing as everyone else and thinking something different..

If any student comes to me and says he wants to be useful to mankind and go into research to alleviate human suffering, I advise him to go into chari….

The real scientist is ready to bear privation and, if need be, starvation rather than let anyone dictate to him which direction his work must take..

Knowledge is a sacred cow, and my problem will be how we can milk her while keeping clear of her horns..

Water is life's matter and matrix, mother and medium. There is no life without water..

All living organisms are but leaves on the same tree of life. The various functions of plants and animals and their specialized organs are manifestat….

Research is to see what everybody else has seen, and to think what nobody else has thought..

A discovery must be, by definition, at variance with existing knowledge. During my lifetime, I made two. Both were rejected offhand by the popes of t….

A living cell requires energy not only for all its functions, but also for the maintenance of its structure..

[A vitamin is] a substance you get sick from if you don't eat it..

We are all but recent leaves on the same old tree of life and if this life has adapted itself to new functions and conditions, it uses the same old b….

I am not religious, but I am a pious man... A religious man has a definite religion. He says "God is there" or "God is there," "God is there." "Your ….

The source of this energy is the sun's radiation..

Research is not a systematic occupation but an intuitive artistic vocation..

Through the ages, man's main concern was life after death. Today, for the first time, we find we must ask questions about whether there will be life ….

Here we stand in the middle of this new world with our primitive brain, attuned to the simple cave life, with terrific forces at our disposal, which ….

Whatever a man does he must do first in his mind..