Subdue your passion or it will subdue you.
To grow a philosopher's beard.
He makes himself ridiculous who is for ever repeating the same mistake.
Shun to seek what is hid in the womb of the morrow, and set down as gain in life's ledger whatever time fate shall have granted thee.
If a man's fortune does not fit him, it is like the shoe in the story; if too large it trips him up, if too small it pinches him.
With self-discipline most anything is possible. Theodore Roosevelt Rule your mind or it will rule you.