学会忍耐的人，会把全世界称为兄弟。
The men who learn endurance, are they who call the whole world, brother.
The conversation about coal must move beyond 'pro' or 'anti'—we need solutions, not slogans.
"Losing is not my enemy...fear of losing is my enemy."
The concept of NP-completeness has provided a powerful tool for understanding the complexity of problems.