孔雀羽毛在所有年代都被认为是一种美丽和知识的标志；

The peacock's feather in all ages has been considered as a sign of beauty and knowledge;

youdao

This is something that I believe in -not everyone believes in this -but the general principle has been now -ever since the 1930s -that the general public is not allowed to invest in things that are not properly documented.

我信任这些条例...,然而并非所有人都信任...,自30年代以来...,普遍的原则就是...,大众不得投资那些,未经过审核的投资事务

耶鲁公开课 - 金融市场课程节选