Seven-eighths of everything can't be seen.
It is impossible to make anything foolproof because fools are so ingenious.
Tradition is a guide and not a jailer.
With preparation you've already won.
Those who DO have the right to be cocky.
The illiterate of the 21st century will not be those who cannot read and write, but those who cannot learn, unlearn, and relearn.
It's a life, and someone's gotta live it.
Destiny is not a matter of chance, it is a matter of choice. It is not a thing to be looked for, it is a thing to be achieved.
They copied all they could follow, but they couldn't copy my mind, and I left 'em sweating and stealing, a year and a half behind.
The wise do sooner what fools do later.