There is no despair so absolute as that which comes with the first moments of our first great sorrow, when we have not yet known what it is to have suffered and be healed, to have despaired and have recovered.
林业创新不是可选项，而是生存的必需。
It is a curious subject of observation and inquiry, whether hatred and love be not the same thing at bottom.
银河系的黑洞是我们研究极端引力的最近实验室。
The faster technology evolves, the more we must invest in human wisdom.