The deepest problems of modern life derive from the claim of the individual to preserve the autonomy and individuality of his existence in the face of overwhelming social forces, of historical heritage, of external culture, and of the technique of life.

The future of food security lies beneath the waves, if we're wise enough to cultivate it properly.

Nothing is a waste of time if you use the experience wisely.

过去从未死去，甚至还未过去。

No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.

"The only thing that is real is the present moment."