数学推理可以相当系统地看作是两种能力的结合运用,我们可以称之为直觉和独创性。
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
Success is stumbling from failure to failure with no loss of enthusiasm.
Those who deny freedom to others, deserve it not for themselves; and, under a just God, can not long retain it.