Mathematics is a conversation between the past and the future.
他说世界是为人们战斗而创造的,事物的价值在于为之战斗的价值。
Without ecological balance, there is no real economic benefit.
使生命成为可能的唯一事情是永久且无法忍受的不确定性;不知道接下来会发生什么。
The only thing that can make you a success is your hard work.