“The mind is not a vessel to be filled but a fire to be kindled.”

“Never let your schooling interfere with your education.”

“The most incomprehensible thing about the world is that it is comprehensible.”

“Without health, life is not life, it is only a state of langour and suffering - an image of death.”

“The sound of a kiss is not so loud as that of a cannon, but its echo lasts a great deal longer.”

“He who is to be a good ruler must have first been ruled.”