有些东西是很难找到的。
There ain’t something you can find just around the corner.
I would say that in the long run probably Communist China is likely to be in more of an expansionist phase than Soviet Russia...In their tactics, the Chinese Communists are probably the greater menace;
先验与后验的区别是认识论的，而非形而上学的。
切勿认为任何事物是绝对确定的。