出自《道德经》，忘语在作品中引用，表达天地无情的世界观。

"Books are the maps of human experience."

（均平的状态下，水）保有内蕴，而外部毫无所动。

To this war of every man against every man， this also in consequent； that nothing can be unjust.The notions of right and wrong， justice and injustice， have there no place.Where there is no common power， there is no law: where no law， no injustice.

"The only way to learn mathematics is to do mathematics."

Sustainability isn't a cost; it's an investment in our collective future.

人は、自分が傷つくことを恐れるあまり、他人を傷つけてしまうことがある。