Sustainability must be at the core of every stone we extract, or we extract nothing at all.

Psychology must be purely experimental and analytical.

我认为女性最好的榜样是那些富有成果且自信地做自己的人，他们为世界带来光明。

I don't need to be perfect. I just need to be me.

和平是最高的善，因为它是心灵与其本性最完全一致的状态。

When you change the way you look at things, the things you look at change.