The saying that a little knowledge is a dangerous thing is, to my mind, a very dangerous adage.  

音乐本身就是一个世界。

The key to successful investing is to have a strong understanding of the fundamentals, a disciplined approach, and a clear understanding of the market.

Poor is the man whose pleasures depend on the permission of another.

The most difficult thing is to be simple.

The concept of law involves the union of primary and secondary rules.