体育教育的伟大思想不在于对身体本性的教育，而在于体育训练与全面教育的关系。

The essence of strategy is choosing what not to do.

Society can and does execute its own mandates， and if it issues wrong mandates instead of right， or any mandates at all in things with which it ought not to meddle， it practices a social tyranny more formidable than many kinds of political oppression， since， though not usually upheld by such extreme penalties， it leaves fewer means of escape， penetrating much more deeply into the details of life， and enslaving the soul itself.

经济增长和环境责任之间的平衡是我们这个时代的决定性挑战。