I can, therefore I am.
Never complain and never explain.
Only the educated are free.
Without hard work, nothing grows but weeds.
If you think you can do it, you can.
It's always too early to quit.
The most effective way to do it, is to do it.
By failing to prepare, you are preparing to fail.
Leap, and the net will appear.
Things do not happen. Things are made to happen.
Greatness, in the last analysis, is largely bravery - courage in escaping from old ideas and old standards and respectable ways of doing things.