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 apprehending all observable reality, and not merely as an instrument for acquiring specialized knowledge.

Religion brings to man an inner strength, spiritual light, and ineffable peace.

The love of beauty in its multiple forms is the noblest gift of the human cerebrum.

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.

One must train oneself, by small and frequent efforts, to dominate one's feelings.

Comforts and syphilis are the greatest enemies of mankind.