色多多在线观看播放-色多多在线观看高清免费-色多多在线观看视频-色多多在线看-欧美aaaaa性bbbbb小妇-欧美aaaav免费大片

To solve a problem, you have to be willing to think differently.

史記

Legal rules are not self-executing; they require human agency to be effective.

A building should not shout; it should whisper to the people who use it.

The forest doesn't need us, but we need the forest—our survival depends on it.

即使沒人相信你，也要相信自己。

在科學中，真理往往存在于不同學科的交匯處。

創新不是選擇，而是生存的必需。