“Happiness is found in doing, not merely possessing.”

“When defeat comes, accept it as a signal that your plans are not sound, rebuild those plans, and set sail once more toward your coveted goal.”

“A quitter never wins-and-a winner never quits.”

“The starting point of all achievement is DESIRE. Keep this constantly in mind. Weak desire brings weak results, just as a small fire makes a small amount of heat.”

“Whatever the mind can conceive and believe, it can achieve.”

“Do not wait: the time will never be 'just right'. Start where you stand, and work whatever tools you may have at your command and better tools will be found as you go along.”

“I am insane, does that surprise you? Ha! I think my mind is crumbling, just like crackers. If I had written five minutes earlier I would have wept, if I had written ten minutes earlier I would have...”

“When we think we're multitasking we're actually multiswitching. That is what the brain is very good at doing - quickly diverting its attention from one place to the next. We think we're being produ...”

“Learn to deal with the fact that you are not a perfect person but you are a person that deserves respect and honesty.”

“But who can remember pain, once its over? All that remains of it is a shadow, not in the mind even, in the flesh. Pain marks you, but too deep to see. Out of sight, out of mind.”

“I know what you are learning to endure. There is nothing to be done. Make sure nothing is wasted. Take notes. Remember it all, every insult, every tear. Tattoo it on the inside of your mind. In lif...”

“My mind, I know, I can prove, hovers on hummingbird wings. It hovers and it churns. And when it's operating at full thrust, the churning does not stop. The machines do not rest, the systems rarely ...”

“I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettie...”

“To know the history of science is to recognize the mortality of any claim to universal truth. ”

“The scientist only imposes two things, namely truth and sincerity, imposes them upon himself and upon other scientists.”