存在与时间相互归属。
Being and time belong together.
The future of forestry lies in technology, but it must serve nature, not exploit it.
心理学研究的正确方向是行为的预测和控制。
追求科学不是一种奢侈,而是人类生存的必要条件。
Most men die at twenty or thirty; thereafter they are only reflections of themselves.