Be thine own palace, or the world's thy jail.
Well done is better than well said.
Go for it now. The future is promised to no one.
Begin to be now what you will be hereafter.
Be gentle to all and stern with yourself.
Know or listen to those who know.
You never know what motivates you.
To know oneself, one should assert oneself.
By failing to prepare, you are preparing to fail.
It's always too early to quit.
Greatness, in the last analysis, is largely bravery - courage in escaping from old ideas and old standards and respectable ways of doing things.