What fire does not destroy, it hardens.
烈火摧毁不了的东西，只会变得更坚固。
The true gold can stand the test of fire, the real capabilities can cope with every new challenge.
What can't kill us just makes us stronger.
What we have learned by heart can't be easily taken away by time.
Yesterday I programmed a simple demo with Arduino to detect the face of people and then to control the airbag.
The function works well, but its performance, if measured with time-consumption and accuracy, is not good enough.
When being asked about the sensors and the algorithms, I failed to give a clear answer.
Honestly, maybe I am not qualified to be a coder, it seems there are too many things I don't know, even what I have learned, I can't use them in my coding practice.
What a pity, that may be the destiny of a loser.
Promote yourself, but do not demote another.
提升自己，但不要贬低他人。
From Israel Salanter.
Demoting others may bring you some benefits in the short-term, but in the long-term, such behaviors only boomerang and hurt yourself.
Always try to praise others and their achievements, that would make us go down very well with our peers.