One must verify or expel his doubts, and convert them into the certainty of Yes or NO.

I dedicate this novel to Gala, who was constantly by my side while I was writing it, who was the good fairy of my equilibrium, who banished the salamanders of my doubts and strengthened the lions of certainties...

A laugh, to be joyous, must flow from a joyous heart, for without kindness, there can be no true joy.

No sadder proof can be given by a man of his own littleness than disbelief in great men.

Nothing stops the man who desires to achieve. Every obstacle is simply a course to develop his achievement muscle. It's a strengthening of his powers of accomplishment.

Thought once awakened does not again slumber; unfolds itself into a System of Thought; grows, in man after man, generation after generation, - till its full stature is reached, and such System of Thought can grow no farther, but must give place to another.