"الرجل الذي لا يغير آراءه مثل الماء الراكد ويولد زواحف العقل"

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

“I would like to die on Mars. Just not on impact.”

“The first wealth is health”

“Happiness depends upon ourselves.”

“Begin to be now what you will be hereafter”

“If you see me in a fight with a bear, pray for the bear”

“Money and success don’t change people; they merely amplify what is already there.”

“The greater your capacity to love, the greater your capacity to feel the pain.”

“Tears are words that need to be written.”

“Courage is not having the strength to go on; it is going on when you don't have the strength.”

“We are stubborn on vision. We are flexible on details.”

“A friend to all is a friend to none.”