To what extent is any given man morally responsible for any given act? We do not know.
The atmosphere of libraries, lecture rooms and laboratories is dangerous to those who shut themselves up in them too long. It separates us from reality like a fog.
Science has to be understood in its broadest sense, as a method for comprehending all observable reality, and not merely as an instrument for acquiring specialized knowledge.
In man, the things which are not measurable are more important than those which are measurable.
Religion brings to man an inner strength, spiritual light, and ineffable peace.
Hard conditions of life are indispensable to bringing out the best in human personality.
Everyone makes a greater effort to hurt other people than to help himself.
The first duty of society is to give each of its members the possibility of fulfilling his destiny. When it becomes incapable of performing this duty it must be transformed.
Comforts and syphilis are the greatest enemies of mankind.
Those who desire to rise as high as our human condition allows, must renounce intellectual pride, the omnipotence of clear thinking, belief in the absolute power of logic.
Intuition comes very close to clairvoyance; it appears to be the extrasensory perception of reality.
The love of beauty in its multiple forms is the noblest gift of the human cerebrum.
Life leaps like a geyser for those who drill through the rock of inertia.
A few observation and much reasoning lead to error; many observations and a little reasoning to truth.
All great men are gifted with intuition. They know without reasoning or analysis, what they need to know.