我旅行得越多,就越确信世界上充满了我们尚未发现的奇迹。
The source of every crime, is some defect of the understanding; or some error in reasoning; or some sudden force of the passions.
The concept of enlightenment is bound up with the concept of emancipation.
数学的乐趣在于努力理解的过程。
The ethical lines we draw today will shape the science of tomorrow.