I've never heard of anyone stumbling on something sitting down.

One of the things we have to be thankful for is that we don't get as much government as we pay for.

I could do nothing without my problems; they toughen my mind. In fact, I tell my assistants not to bring me their successes for they weaken me, but rather to bring me their problems, for they strengthen me.

It is the 'follow through' that makes the great difference between ultimate success and failure, because it is so easy to stop.

Thinking is one thing no one has ever been able to tax.

One fails forward toward success.

Failures, repeated failures, are sign-posts on the road to achievement. The only time you don't want to fail is the last time you try something (and it works).