You never know what motivates you.
What you do today can improve all your tomorrows.
If you think you can do it, you can.
The most effective way to do it, is to do it.
To know oneself, one should assert oneself.
Know or listen to those who know.
By failing to prepare, you are preparing to fail.
Do not weep do not wax indignant. Understand.
Who seeks shall find.
Go for it now. The future is promised to no one.
Crabbed and obscure definitions are of no use beyond a narrow circle of students, of whom probably every one has a pet one of his own.