La verdadera patria de un poeta es su lengua.

Chemistry is the poetry of logic and the logic of poetry.

We need to design policies that account for human psychology, not just economic theory.

The world may be mean, but people don’t have to be, not if they refuse.

The real heroes are the ones who have the courage to say no.

儿童是通过努力从事活动，从而使个人得到发展的。