Jean d'Alembert

"Time passes, and with it, the opportunity to act."

"The greater the genius, the greater the capacity for taking pains."

"One cannot be just if one is not humane."

"The cultivation of the sciences is the best means of strengthening the power of a state."

"The secret of success is to treat others as you wish to be treated."

"Music is the passion of my life, but I have given it up for mathematics."

"Peace comes from within. Do not seek it without."

"Every great achievement was once considered impossible."

"The mind is everything; what you think, you become."

"To live is to think and feel; to think is to know yourself."

"The laws of nature are the thoughts of God."

"Beauty without grace is like a hook without bait."

"The greatest invention is the ability to imagine what does not yet exist."

"Death is not the opposite of life, but of birth."

"Patience is the virtue of the strong."

"Knowledge is power, but only if it is applied with wisdom."

"The measure of intelligence is the ability to change."

"A man is only as strong as his resolve."

"The fear of death follows from the fear of life."

"Power without principle is tyranny."

"Money is the root of nothing; it is merely a tool."

"Health is a state of complete physical, mental and social well-being."

"Adventure is the vitality of the soul."

"The imagination is more important than knowledge."

"History teaches us that history teaches us nothing."

"The examined life is the life worth living."

"Literature is the mirror of society."

"Politics is the art of preventing people from concerning themselves with what is their own business."

"War is the continuation of politics by other means."

"Motivation is internal; inspiration is external."