Science is not just about facts, but about understanding the underlying principles that govern those facts.

I never buy anything unless I can see a clear path to a 50% gain.

骄矜自大，独断专行，招祸之源。

The heart of the Waldorf method is that education is an art—it must speak to the child's experience. To educate the whole child, his heart and his will must be reached, as well as the mind.