Things do not happen. Things are made to happen.
If you think you can do it, you can.
If you can dream it, you can do it.
To be a good loser is to learn how to win.
Do not weep do not wax indignant. Understand.
Never complain and never explain.
It's always too early to quit.
Who seeks shall find.
The dog that trots about finds a bone.
By failing to prepare, you are preparing to fail.
It's amazing what you can get on open source now if you actually use the right search engines to find the material.