唯一的限制是你为自己设定的限制。
Man is by nature a reasonable being, but animals, other than man, are by nature instruments of brute force.
土地是我们最伟大的老师,我们必须倾听它并向它学习。
人は、自分が思っている以上に、他人に影響を与えている。
当别人都不相信你时,你必须相信自己。
The world must be set in order. The time has come when ethics must be dealt with by science, and never again by mere opinion.