这世上90%的东西都没价值。如果你觉得你不喜欢歌剧、言情小说、TikTok、乡村音乐、素食、NFT，继续尝试，看你是否能找到于你而言，有价值的那10%。

出自汉·桓宽《盐铁论·地广》。贱，指地位低。贫，指没有钱财。地位卑贱并不妨碍一个人的智慧，家境贫寒并不妨碍一个人的品行。这句话言评价一个人的才智、德行不能根据其社会地位、经济状况来作判断。出身低贱的人，不一定没有智慧；家境贫寒的人，不一定没有品行。

经济学最终是为了改善人类福祉。

A person may cause evil to others not only by his actions but by his inaction， and in either case， he is justly accountable to them for the injury.

One of the best rules anybody can learn about investing is to do nothing, absolutely nothing, unless there is something to do... I just wait until there is money lying in the corner, and all I have to do is go over there and pick it up.

对于行善，没有别人和自己的区分，抛弃自己的不对，接受人家对的，非常快乐地吸取别人的优点来做好事。