The best way to predict the future is to invent it.

Leadership in mining means making tough decisions today for a better tomorrow.

Mental phenomena can only be understood in terms of their consequences for action.

我永远感激我的贫苦父母。我欠他们一切，无论是我的教育、我的生命，还是我取得的任何成功。

自然是最伟大的智者。

表演不是为了炫耀，而是为了诚实。