对某人来说，世界总是在终结。
Challenges are opportunities to innovate and grow.
The development of computational complexity theory has shown us that not all problems are created equal.
穿着粗布衣裳，吃着简单饭菜，这样的快乐哪里需要刻意寻求？
The universe is asymmetric and I am persuaded that life, as it is known to us, is a direct result of the asymmetry of the universe or of its indirect consequences.
我不相信极限。
Do you not see how necessary a world of pains and troubles is to school an intelligence and make it a soul?