The most dangerous threat to democracy is the erosion of trust in institutions.

解析：金玉满堂，无法守藏；如果富贵到了骄横的程度，那是自己留下了祸根。

The most remarkable development of the last quarter of the twentieth century has been the revelation of enormous weaknesses at the core of the world's seemingly strong dictatorships.

I have self-doubt. I have insecurity. I have fear of failure. I have nights when I show up at the arena and I’m like, “My back hurts, my feet hurt, my knees hurt. I don’t have it. I just want to chill.” We all have self-doubt. You don’t deny it, but you also don’t capitulate to it. You embrace it.

最好的老师是那种建议而不是教条化，并激发听众自我教学愿望的人。