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To overcome the anxieties and depressions of contemporary life, individuals must become independent of the social environment to the degree that they no longer respond exclusively in terms of its rewards and punishments.

The world is a graveyard, and we are its ghosts.

林業(yè)的未來在于技術(shù)，但它必須服務(wù)于自然，而不是剝削自然。

In mathematics, the art of proposing a question must be held of higher value than solving it.

在個(gè)體中，瘋狂是罕見的；但在團(tuán)體、黨派、國家和時(shí)代中，它卻是常規(guī)。

我們都被過去所困擾，過去總是存在的。