"Les erreurs sont toujours pardonnables si l'on a le courage de les admettre."

“A clever person solves a problem. A wise person avoids it.”

“When the outlook is bright, bring it before their eyes; but tell them nothing when the sit...”

“We don't stop playing because we grow old; we grow old because we stop playing.”

“You are what you believe yourself to be.”

“When you have a goal, when you have a vision, everything becomes easy”

“An ounce of action is worth a ton of theory”

“Tomorrow is promised to no one”

“Failure and invention are inseparable twins. To invent you have to experiment, and if you ...”

“The ego is not master in its own house.”

“I can choose either to be a victim of the world or an adventurer in search of treasure. It...”

“Let your plans be dark and impenetrable as night, and when you move, fall like a thunderbolt.”

“If you don't like something, change it. If you can't change it, change your attitude.”