"L'homme qui ne change jamais d'opinion est comme de l'eau stagnante et engendre des reptiles de l'esprit"

“When something bad happens, you have three choices. You can either let it define you, let ...”

“Genius is 1% talent and 99% percent hard work”

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

“Everyone seems to have a clear idea of how other people should lead their lives, but none ...”

“We're not retreating; we're advancing in different direction;”

“His hands can’t hit what his eyes can't see.”

“The greatest education in the world is watching the masters at work”

“If I had asked people what they wanted, they would have said faster horses.”

“Hurt me with the truth. Don’t comfort me with a lie”

“Build your opponent a golden bridge to retreat across.”

“If you're not stubborn, you'll give up on experiments too soon.”

“The voice of the intellect is a soft one, but it does not rest until it has gained a hearing.”