I think that the most important thing is to be honest with yourself and with your audience.

理解黑洞就是理解宇宙的结构本身。

通往可持续性的道路充满了挑战和机遇。

You're going to pay a price for every bloody thing you do and everything you don't do. You don't get to choose to not pay a price. You get to choose which poison you're going to take. That's it.