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Death is the only truly serious philosophical problem.
真相很少是纯粹的,也从不简单。
我们仍然是我们命运的主人,我们仍然是我们灵魂的主宰。
The only learning which significantly influences behavior is self-discovered, self-appropriated learning.
Technological innovation is the primary driving force for the high-quality development of the natural gas industry.
The light of reason is different from the light of nature.