The moral of Tsinghua University's half-brain portrait

There is no official explanation about the meaning of Tsinghua University's head portrait. Here are other people's guesses:

1. This statue is called "self-knowledge", which means "know yourself". This is the third motto of Delphi Temple.

2. One of the philosophical propositions of the ancient Greek philosopher Socrates, the original text is: "Know yourself". As the motto of Delphi Temple, he was also the first wise man to serve his country here.

3. God said: There is one person among you, you just use him, and he is not loyal to you. This is Socrates' trial.