To know oneself, one should assert oneself.
Only the educated are free.
The wise does at once what the fool does at last.
Be thine own palace, or the world's thy jail.
It's always too early to quit.
By failing to prepare, you are preparing to fail.
Be gentle to all and stern with yourself.
If you've got a talent, protect it.
The most effective way to do it, is to do it.
Know or listen to those who know.
I pick projects according to how fascinating they are to me, and it has resulted in a broad reach. My records are actually in five different sports: balloons, airplanes, airships, gliders, and sailboats.