"The tragedy is that we cannot believe the dogmas of religion and metaphysics if we have the strict methods of truth in heart and head, but on the other hand, we have become through the development of humanity so tenderly suffering that we need the highest kind of means of salvation and consolation: whence arises the danger that man may bleed to death through the truth that he realises."
"When we are tired, we are attacked by ideas we conquered long ago."
"The man of knowledge must be able not only to love his enemies but also to hate his friends."
"The individual has always had to struggle to keep from being overwhelmed by the tribe. If you try it, you will be lonely often, and sometimes frightened. But no price is too high to pay for the privilege of owning yourself."
"The man of knowledge must be able not only to love his enemies but also to hate his friends."
"There is always some madness in love. But there is also always some reason in madness."