Men become civilized, not in proportion to their willingness to believe, but in proportion to their readiness to doubt.
The mind is not a vessel to be filled, but a fire to be kindled.
勇敢是一种德行,不仅在战斗中,在生活中的各个方面都需要勇敢。
The best way to predict the future is to create it.
The things that we love tell us what we are.