For thirty years now I have been studying my fellowmen. I don "t know very much about them."

三十年来，我一直在研究我的人类同胞，但至今了解不多。

youdao

I will spend time in studying, learning how to better serve my fellowmen.

我将花时间去学习，学会如何更好地为我的同胞服务。

youdao

First of all, it should be of real service to my fellowmen and not merely enable me to earn a living.

首先应该真正的为同胞服务，而不仅使我可以谋生。

youdao