How you think about a problem is more important than the problem itself. So always think positively.

Nobody ever mastered any skill except through intensive persistent and intelligent practice.

Become a possibilitarian.

The trouble with most of us is that we would rather be ruined by praise than saved by criticism.

You have a choice everyday... You can choose every morning whether you will be depressed and miserable, or whether you will be happy.

The only people who don't have problems are in a cemetery.

If you feel afraid, you can make yourself courageous by acting courageous. If you are feeling unhappy, by deliberately acting happy you can induce happy feeling. If you are lacking in enthusiasm, by simply acting enthusiastic you can make yourself enthusiastic.