I think the best thing you can do is to be true to yourself.

What appears good to one may appear evil to another， and vice versa.

The safety of the state is the highest law.

The only way of discovering the limits of the possible is to venture a little way past them into the impossible.

当科学开始研究非物质现象的那一天，它将在十年内取得比过去所有世纪更多的进步。