The search for truth is more precious than its possession.
可持续发展不仅仅是一个流行词，而是我们对后代的责任。
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.
The past is a shadow that follows us, always present, always influencing our steps.