One should respect an honest person even if he expresses opinions differing from one's own.
The more I learn of physics, the more I am drawn to metaphysics.
I very rarely think in words at all. A thought comes, and I may try to express in words afterwards.
No problem can be solved from the same level of consciousness that created it.
The road to perdition has ever been accompanied by lip service to an ideal.
I never allow myself to become discouraged under any circumstances. The three great essentials to achieve anything worthwhile are first, hard work, second, stick-to-ittiveness, third, common sense.