Chemistry is the science of matter, but I prefer to see it as the science of change.

And that's a lot of the reason why we care so much about our careers and indeed start caring so much about material goods. You know, we're often told that we live in very materialistic times, that we're all greedy people. I don't think we are particularly materialistic. I think we live in a society which has simply pegged certain emotional rewards to the acquisition of material goods. It's not the material goods we want;

You are not stuck where you are unless you decide to be.

网络的力量在于其普遍性。无论是否有残疾，每个人都能访问是一个基本方面。

志向远大之人，必须谨慎选择自己所承担的任务，有才华之人，必须选择一个值得投靠的人。