“Perhaps I will stay in Chicago and operate on human beings instead of on dogs. From a business standpoint, it would be excellent. But, as I hate medical practice, I would like better to make little money in doing scientific work than a great deal in doing surgical operations.”

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

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

“Like hatred, jealousy is forbidden by the laws of life because it is essentially destructive.”

“Perhaps I will stay in Chicago and operate on human beings instead of on dogs. From a business standpoint, it would be excellent. But, as I hate medical practice, I would like better to make little money in doing scientific work than a great deal in doing surgical operations.”

“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.”

“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.”

“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.”

“A few observations and much reasoning lead to error many observations and a little reasoning to truth.”

“Prayer is the force as real as terrestrial gravity. As a physician, I have seen men, after all other therapy had failed, lifted out of disease and melancholy by the serene effort of prayer. Only in prayer do we achieve that complete and harmonious assembly of body, mind and spirit which gives the frail human reed its unshakable strength.”

“Man cannot remake himself without suffering, for he is both the marble and the sculptor”