人们变得文明,不在于他们愿意相信的程度,而在于他们愿意怀疑的程度。
Men become civilized, not in proportion to their willingness to believe, but in proportion to their readiness to doubt.
A free press can be good or bad, but, most certainly, without freedom, the press will never be anything but bad.
Every discovery in physics opens the door to a new mystery.