You can't let praise or criticism get to you. It's a weakness to get caught up in either one.

“Man cannot discover new oceans unless he has the courage to lose sight of the shore.”

Not the ones speaking the same language, but the ones sharing the same feeling understand each other.

There is only one way to happiness and that is to cease worrying about things which are beyond the power of our will.

Optimism is the faith that leads to achievement.

I am a man of fixed and unbending principles, until the circumstances change.

The best and most efficient pharmacy is within your own system.