放弃
Today is cruel, tomorrow is crueler, and the day after tomorrow is beautiful, but most people die tomorrow night, so don't give up today.
If you don't give up, you still have a chance. Giving up is the greatest failure.
Persistence is very important. You should not give up unless you are forced to give up.
The greatest breakthroughs come from those who refuse to give up.
In quantum mechanics, we have to abandon the idea that particles have definite properties before measurement.
I can dispense with all truth, but not with the search for truth.