Throughout history, one of the biggest problems is that the correct course of action is not always obvious, and the obvious course of action is not always correct.

A life without purpose is like a novel without a plot. It wanders all over the place, is hard to follow, and in the end, doesn't get particularly good reviews.

The young think about how they'll change the world, the old think about how the world has changed.

You'll never stand out if your goal in life is to fit in.

Turning seventy is like beginning the eighth inning of a baseball game. The contest is nearing completion, but there's likely to be some action, and even a few exciting plays, before the game draws to an end.

Never confuse the importance of things with things of importance.

The best teachers aren't those who answer our questions, but those who question our answers.