The greatest teacher is called “doing”.

I cannot but be astonished that Socrates， after having so often repeated to his fellow citizens that he did not pretend to any wisdom， but had been appointed by the gods to a mission of benevolence towards them， should have been condemned to death.

Power is not given to you. You have to take it.

写作是留下遗产的一种方式。

无人机技术最大的价值在于它能到达人难以到达的地方。