Generally speaking, envy, resentment, and self-pity are disastrous modes of thoughts.Self-pity gets fairly close to paranoia, and paranoia is one of the very hardest things to reverse.

Know what you own, and know why you own it.

化工行业有能力改变社会，但前提是我们在进步的同时承担责任。

I don’t really have studios. I wander around around people’s attics, out in fields, in cellars, anyplace I find that invites me.

There's a tendency to think that our present politicians are much worse than we had in the past.But we tend to forget how awful our politicians were in the past.