Man cannot remake himself without suffering, for he is both the marble and the sculptor.
The love of beauty in its multiple forms is the noblest gift of the human cerebrum.
The quality of life is more important than life itself.
The most efficient way to live reasonably is every morning to make a plan of one's day and every night to examine the results obtained.
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.
Intuition comes very close to clairvoyance; it appears to be the extrasensory perception of reality.
Like hatred, jealousy is forbidden by the laws of life because it is essentially destructive.
All of us, at certain moments of our lives, need to take advice and to receive help from other people.
Religion brings to man an inner strength, spiritual light, and ineffable peace.
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.
Hard conditions of life are indispensable to bringing out the best in human personality.
The difficulty of finding organs suitable for transplantation on man must be met.
Comforts and syphilis are the greatest enemies of mankind.
The German government has taken energetic measures against the propagation of the defective, the mentally diseased, and the criminal.
Everyone makes a greater effort to hurt other people than to help himself.
To what extent is any given man morally responsible for any given act? We do not know.
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.
In man, the things which are not measurable are more important than those which are measurable.
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.
