To write is to descend into the abyss of oneself.
Freedom does not consist in any dreamt-of independence from natural laws, but in the knowledge of these laws, and in the possibility this gives of systematically making them work towards definite ends.
The cement industry must evolve or become obsolete.
不要为成功而努力,要为做一个有价值的人而努力。
The environment is a long-term issue that requires long-term commitment.