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."

"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."

Life leaps like a geyser for those who drill through the rock of inertia.

"As to virtue . . . it is an act of the will, a habit which increases the quantity, intensity and quality of life. It builds up, strengthens and vivifies personality."

Comforts and syphilis are the greatest enemies of mankind.