Problems are not stop signs, they are guidelines.
The dog that trots about finds a bone.
Never complain and never explain.
Know or listen to those who know.
To know oneself, one should assert oneself.
Expect problems and eat them for breakfast.
Without hard work, nothing grows but weeds.
If you think you can do it, you can.
It's always too early to quit.
Go for it now. The future is promised to no one.
The one phrase you can use is that success has a thousand fathers, and failure is an orphan.