Do not put forward anything that you cannot prove by experimentation.
教育的艺术必须是引导孩子达到能够自我教育的程度。
"To be a writer is to sit down at one's desk in the chill portion of every day, and to write; not waiting for the little jet of the blue flame of genius to start from the breastbone--just writing."
Every seed planted is a vote for the kind of world we want to live in.