He that falls in love with himself, will have no rivals.
Productive thinking is characterized by the sudden appearance of the solution as an insight.
The only way to avoid being miserable is not to have enough leisure to wonder whether you are happy or not.
There are no hard distinctions between what is real and what is unreal, nor between what is true and what is false. A thing is not necessarily either true or false; it can be both true and false.
Existence is not its own justification.