"A person should not be too honest. Straight trees are cut first and honest people are screwed first."

"There is some self-interest behind every friendship. There is no friendship without self-interests. This is a bitter truth."

"The fragrance of flowers spreads only in the direction of the wind. But the goodness of a person spreads in all directions."

"Learn from the mistakes of others. You can't live long enough to make them all yourself."

"Once you start working on something, don't be afraid of failure and don't abandon it. People who work sincerely are the happiest."

"Even if a snake is not poisonous, it should pretend to be venomous."