学者贵于行之，而不贵于知之；贵于有用，而不贵于无用。
译文：学习贵在实践，而非空知;贵在有用于世，而非无用之学。反对空谈，提倡经世致用。
Don't interfere with anything in the Constitution. That must be maintained, for it is the only safeguard of our liberties. And not to Democrats alone do I make this appeal, but to all who love these great and true principles.
Never underestimate the power of collaboration—great things are rarely achieved alone.
