The past is always carried into the present by small things.
The cowards never started and the weak died along the way. That leaves us.
知識會使人變得更加聰明，但不會使人更加幸福。
The next green revolution must be both productive and environmentally responsible.
I'm not perfect, and I don't pretend to be.
The world is so full of people, so crowded with these miracles, that they become commonplace and we forget.