关于孔子的英语翻译，谢谢

When I walk along with two others, I may be able to learn from them.
What you know , you know . What don’t you know. You don’t know.
To study and not think is a waste. To think and not study is dangerous.
Isn’t it a pleasure that friends come to see you from far away?

三人行，必有我师。知之为知之，不知为不知，是知也。学而不思则罔，思而不学则殆。有朋自远方来，不亦乐乎？

if life is not understood, how could death be fathomed 原句只六字，精辟之极，难以形容。英文当亦似警句，简洁明了。再试译： unknown yet is life, much less is death.