The best leaders are those who listen, learn, and then lead.

The hardest decisions often require the simplest question: 'What's right for the long term?'

Compassion for animals is intimately connected with goodness of character.

我不是一位雅典人或希腊人，而是一位世界的公民。

我不想被拿来和任何人比较，我要创造自己的历史。