I think it's important to keep challenging yourself, to keep growing.

当下总是不稳定的地方，而过去是我们自以为知道身在何处的地方。

If oxen and horses and lions had hands and could paint with their hands and produce works of art as men do, horses would paint the forms of the gods like horses, and oxen like oxen, and they would make their bodies in accordance with the form that each species itself possesses.

出自晋·葛洪《抱朴子·博喻》。名与实不相符者，不会名垂千古;地位高而不称职的人，不免要被夺去位子。

Every seed we plant carries the potential to transform lives.

勤俭了就有了约束，有约束了就会各种好事都做；奢侈就放肆，放肆则各种坏事都泛滥。

Mathematics is an art, and as an artist, you have to be honest with yourself.