所有发生过一次的事物都不会再发生。但是所有发生过两次的事物必定会第三次发生。
Everything that happens once can never happen again. But everything that happens twice will surely happen a third time.
You can't predict. You can prepare.
Morality is simply the attitude we adaptto people whom we personally dislike.
Sustainability isn’t a trend—it’s a responsibility we owe to future generations.