Incomplete perfection is more profound than complete perfection.

The more we learn of the true nature of non-human animals, especially those with complex brains and corresponding complex social behaviour, the more ethical concerns are raised regarding their use in the service of man—whether this be in entertainment, as ‘pets,’ for food, in research laboratories or any of the other uses to which we subject them.

释义：兵法的要旨在于灵活应变，善于了解和掌握军事的本质，行动之前必须先预测敌人的动向。

自然界运行的规律就是，发展到尽头则走向反面，发展到极盛则走向衰落。

政治的追求不是追求完美，而是追求可容忍的。