The elegance of a mathematical proof is in its simplicity and clarity.

The quality of governance is a crucial determinant of economic development.

My work is purely autobiographical... It is about myself and my surroundings.

Enjoyment appears at the boundary between boredom and anxiety, when the challenges are just balanced with the person’s capacity to act.

无论是个人还是国家，只要生活节俭，就会繁荣昌盛；如果贪图享受，放纵欲望，那就会走向衰亡。