You never know what motivates you.
It's always too early to quit.
Who seeks shall find.
To be a good loser is to learn how to win.
To know oneself, one should assert oneself.
If you've got a talent, protect it.
Begin to be now what you will be hereafter.
The most effective way to do it, is to do it.
Go for it now. The future is promised to no one.
Be kind whenever possible. It is always possible.
If 50 percent of your career is not filled with failure, you're not really successful.