说出真相的唯一方式是以权威的口吻说话。

Reason is， and ought only to be the slave of the passions， and can never pretend to any other office than to serve and obey them.

创新需要勇气，更需要坚持。

避免痛苦的唯一方法就是不要有足够的闲暇去思考自己是否幸福。