The anarchic nature of the international system compels states to prioritize their own survival above all else.

农业的未来掌握在年轻科学家手中。

A philosophical problem has the form: 'I don't know my way about.'

Part of what you must learn is how to handle mistakes and new facts that change the odds.Life, in part, is like a poker game wherein you have to learn to quit sometimes when holding a much-loved hand.

The most reliable way to anticipate the future is by understanding the present.

通过反思来获得智慧。