To know oneself, one should assert oneself.
The most effective way to do it, is to do it.
To be a good loser is to learn how to win.
Know or listen to those who know.
Go for it now. The future is promised to no one.
If you think you can do it, you can.
After a storm comes a calm.
Expect problems and eat them for breakfast.
Things do not happen. Things are made to happen.
Who seeks shall find.
I think it's good that I had some experience of the real world before I became successful. You know, having to get up in the morning and going to work in construction.