In the survival of favoured individuals and races, during the constantly-recurring struggle for existence, we see a powerful and ever-acting form of selection.
The way to know life is to love many things.
Nobody realizes that some people expend tremendous energy merely to be normal.
You can't live your life for other people. You've got to do what's right for you, even if it hurts some people you love.
There is nothing more frightful than ignorance in action.
We are called to be architects of the future, not its victims.
The love of life is necessary to the vigorous prosecution of any undertaking.
Life is a disease, brother, and death begins already at birth. Every breath, every heartbeat, is a moment of dying - a little shove toward the end.
During your life, never stop dreaming. No one can take away your dreams
Life is a succession of lessons which must be lived to be understood.
Amnesty is as good for those who give it as for those who receive it. It has the admirable quality of bestowing mercy on both sides.
We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology.
To forgive is not just to be altruistic.
The less you know, the more you believe.
Today, more than ever before, life must be characterized by a sense of Universal responsibility, not only nation to nation and human to human, but also human to other forms of life.
It was my care to make my life illustrious not by words more than by deeds.
Too much of a good thing can be wonderful!
In order to seek truth, it is necessary once in the course of our life to doubt, as far as possible, of all things.
Only he who accepts clashes and conflicts in life, loves life.
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.
You can give in to the failure messages and be a bitter deadbeat of excuses. Or you can choose to be happy and positive and excited about life.