通过战争建立的帝国必须通过战争来维持。
An empire founded by war has to maintain itself by war.
真相很少是纯粹的，也从不简单。
The key to success is to focus on goals, not obstacles.
Order and simplification are the first steps toward the mastery of a subject.
艺术家的角色是让不可见的东西变得可见。
唯一让我活下去的就是音乐。
动物健康的未来在于预防，而不仅仅是治疗。
We write to remember, but also to forget.