"Si vous voulez changer le monde prenez votre plume et écrivez"

“I like the challenge of trying different things and wondering whether it’s going to work...”

“If you can't explain it to a six year old, you don't understand it yourself.”

“If you're watching your competitors, you're unlikely to invent a bunch of stuff on your own.”

“Happiness depends upon ourselves.”

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

“These pains you feel are messengers. Listen to them”

“Be fearful when others are greedy and greedy when others are fearful”

“Habit is the best of all servants, or the worst of all masters.”

“Friends congratulate me after a quarterly-earnings announcement and say, 'Good job, great ...”

“When you realize who you live for, and who's important to please, a lot of people will act...”

“The most beautiful thing you can wear is confidence”

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