Climate change is one of the biggest challenges of our time, and we must take action now.

解释：一时的恩宠、利益名声总有尽头，但历史的评述是过了千年也欺瞒不了的。

音乐是生命的礼物。

What I want to talk to you about today is the difference between gifts and choices. Cleverness is a gift， kindness is a choice. Gifts are easy -- they're given after all. Choices can be hard. You can seduce yourself with your gifts if you're not careful， and if you do， it'll probably be to the detriment of your choices.