Be thine own palace, or the world's thy jail.
To know oneself, one should assert oneself.
Never complain and never explain.
If you think you can do it, you can.
Only the educated are free.
You never know what motivates you.
Do not weep do not wax indignant. Understand.
Begin to be now what you will be hereafter.
The secret of getting ahead is getting started.
Expect problems and eat them for breakfast.
As a rule, software systems do not work well until they have been used, and have failed repeatedly, in real applications.
Whenever anyone says, 'theoretically,' they really mean, 'not really.'