"If you can't explain it simply, you don't understand it well enough"
Albert Einstein

"Try to learn something about everything and everything about something"
Thomas Henry Huxley

"Believe you can and you're half way there"
Theodore Roosevelt

"The best theory is inspired by practice. The best practice is inspired by theory"
Donald Knuth

"Dream as if you'll live forever, live as if you'll die today"
James Dean

"Whether you think you can or you think you can't, you're right"
Henry Ford

"Insanity is doing the same thing over and over again, but expecting different results"
Albert Einsteine

"I know that you believe you understand what you think I said, but I'm not sure you realize that what you heard is not what I meant"
Robert McCloskey

"A goal without a plan is just a dream"