The beauty of mathematics lies in its simplicity and depth.
The child is not a passive recipient of knowledge but an active participant in the learning process.
You can't build a reputation on what you are going to do.
译文:任凭尘世白日里忙碌得像火一样炽热,我却像云朵飘荡,无忧无虑。
你知道的越多,你就越意识到你不知道的越多。
You don't learn to walk by following rules. You learn by doing, and by falling over.