All happiness is not without troubles, and all adversity is by no means hopeless.-Bacon's difficulties bully the weak and fear the hard. The more you fear them, the more intimidating they are, and the less you look down on them, the more deferential they are to you.

It's not a bad thing for a person to take detours and make mistakes on the road of scientific exploration, and it's not a shame. We should be brave enough to admit and correct mistakes in practice. -Einstein is tough despite all kinds of hardships.

Life is full of thorns, and the only way we can think of is to cross those thorns quickly-Voltaire hopes to be a faithful sister of bad luck.

There are wind and rain on the road of life, and there are thorns everywhere. As long as we struggle, there will be flowers and applause waiting for us. Celebrities have said that frustration is a bottomless pit for an incompetent person, but it is a stepping stone to success for those who dare to face setbacks.