忧伤愁苦，就会心气滞结；忿怨愤怒，就会心气横逆不顺；惊恐畏惧，就会心气沉落不浮；拘谨固执，就会心气郁郁不释；急躁浮躁，就会心气损耗不足。
The best books are those that challenge you.
La poesía no es un lujo, es una necesidad.
热情很常见。持久力很罕见。
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
林业创新不是可选的——它对生存至关重要。