Things that I felt absolutely sure of but a few years ago, I do not believe now. This thought makes me see more clearly how foolish it would be to expect all men to agree with me.

Don’t spend most of your time on the voices that don’t count. Tune out the shallow voices so that you will have more time to tune in the valuable ones.

Always be willing to look at both sides of the argument. Understanding the other side is the best way to strengthen your own.

We cannot move casually into a better future. We cannot casually pursue the goal we have set for ourselves. A goal that is casually pursued is not a goal; at best it is a wish, and wishes are little more than self-delusion.

We can have more than we've got because we can become more than we are.

Attitude is your acceptance of the natural laws, or your rejection of the natural laws.

Knowledge fueled by emotion equals action.