“If you can’t explain it simply, you don’t understand it well enough.”

I have been impressed with the urgency of doing. Knowing is not enough; we must apply. Being willing is not enough; we must do.

Self-pity is our worst enemy and if we yield to it, we can never do anything good in the world.

Time stays long enough for anyone who will use it.

Reality does not conform to the ideal, but confirms it.

Your ability to maintain a positive mindset in the face of challenges will determine your ultimate success.

Promises are the uniquely human way of ordering the future, making it predictable and reliable to the extent that this is humanly possible.