"The past is always with us, for it feeds the present."

我不能教会别人任何事。我只能让他们思考。

I'm not a prophet or a stone aged man, just a mortal with potential of a superman.

自由的价值只有失去时才真正懂得。

"The key to good research is not just the method, but the clarity of the question and the quality of the data."

We must balance the need for energy today with the imperative of protecting the planet for tomorrow.

The art of life is to live in the present moment, and to make that moment as perfect as we can.