一本书是世界的一个版本。如果你不喜欢它，忽略它；或者提供你自己的版本作为回报。
"A book is a version of the world. If you do not like it, ignore it; or offer your own version in return."
人生は、一度きりの旅だ。だからこそ、その瞬間を大切にしなければならない。
The strength of a habit is proportional to the amount of reinforcement.
The role of the artist is to ask questions, not to give answers.
The world is a tragedy to those who feel, but a comedy to those who think.
Always strive for excellence, not perfection.
History is humanity's collective memory.