Moreover, the causes of toughness are dramatic. My mother says, ’They attract me, they are my subordinates, well-wishers, caretakers, helpers, stairs, positive electrons, idols, exponential growth factors. I should take them as my best friends.’ Maybe it's the truth, maybe mothers are right, maybe I think a lot, maybe I should be happy and just sit back, maybe I should confront them and get along with them, maybe I should try, maybe I should let toughs take a lead, maybe I should let them play a part, maybe I should not compete.