How strong a vase is, I am afraid that only when you break it will you know. At that time, however, the vase was no longer the beauty of your eyes, only the broken.
Humanity is like a vase, and it cannot withstand any test and temptation.
As Higashino Keigo said: "There are two things in the world that cannot be seen directly. One is the sun and the other is the human heart. In the face of human nature, people are always small."

- 01 -
A young couple has a good relationship, but the wife still does not trust her husband's loyalty, so she let her girlfriends go out and test whether her husband is willing to pay.
On a Mid-Autumn Festival full moon night, his wife was "traveled" outside, and the girlfriend "caught" her husband, so her girlfriend and her husband both made a move and slept on the same bed.
The result is a divorced couple.

- 02 -
A real estate owner, grateful to a subordinate loyalty, intends to reward the subordinate house. He asked the employee to choose one of the communities that the company developed.
As a result, the subordinate chose a large 120-square-meter set, which made the boss very unhappy.
He thought that the subordinate would consciously choose an 80-square-meter set, "I didn't expect him to be so greedy."
He changed his mind and gave the ministry an 80-square-meter set.
So the subordinate was dissatisfied and the boss lost a good employee.

- 03 -
The famous Danish medical scientist and Nobel laureate Finsen wanted to train a successor in his later years. Among the many candidates, Finson selected a young doctor named Harry.
But Finson is worried that this young man can't stick to it in very boring medical research.
Finson’s assistant George made a suggestion: Let a friend of Finson pretend to hire Harry at a high salary to see if he would be tempted.
However, Finsen rejected George's suggestion. He says:
"Don't stand on the high point of morality to overlook others, and never test humanity. Harry is born in a slum, how can he not have a desire for money. If we must set a difficult test to test him, on the one hand, give him a relaxed High-paying work, on the other hand, he wants him to choose to refuse, which requires him to be a saint."
In the end, Harry became a disciple of Finson.
A few years later, Harry became a famous Danish medical scientist. When he heard that Finson refused to test his humanity, he said with tears: "If the teacher used to make a bait with great interests to evaluate my personality, I would definitely fall into that trap. Because my mother at the time. I am sick in bed and need to be healed, and my brothers and sisters are waiting for me to go to school. If so, I will not have the achievements."

- 04 -
"Food color, sex is also good", delicious for a lover, the results are conceivable.
People are not saints, they all have weaknesses.
If a person always wants to test how deep the relationship between husband and wife is, how good the classmates are, the loyalty of the buddy is iron, and over time, it is inevitable that this relationship will produce rust and blindfold the past.
Human nature is good, evil, contradictory and complicated. If we hold the expectation of "good results" to test human nature, it will often disappoint us. This is normal.
Therefore, do not deliberately test human nature, human nature can not stand the test.
I hope that you and I can show people with sincerity. Even if you are not good at making friends and you are not careful, you can always regret your heart.