The existence of the natural world is the same kind of fact as the existence of any proposition.
自然界的存在与任何命题的存在是同一类型的事实。
Life is like a roller coaster, live it, be happy, enjoy life.
The past is not dead; it is not even past.
The future of agriculture lies in sustainable development. We must leave green mountains and clear waters for future generations.
We may define therapy as a search for value.