Don't be afraid to make mistakes, but learn from them quickly.
不为苏联解体而惋惜的人没有良心,想恢复苏联的人没有头脑。
The true cost of coal must account for both its immediate value and its long-term impact on communities and ecosystems.
A ship in port is safe, but that's not what ships are built for.
He who sacrifices freedom for security deserves neither.