因此，自爱是行动的必要原则。
Self-love， then， is a necessary principle of action.
The leather industry has a rich history, but its future depends on innovation and ethical practices.
皮革行业有着丰富的历史，但其未来取决于创新和道德实践。
I think the biggest thing is just to be yourself and to be comfortable with who you are.
Genetic research should serve humanity, not just commercial interests.
The future is always changing, but the past is always the same.
The history of science is the history of men correcting their mistakes.
让我们团结起来，为国家的独立和人民的自由而战。
"Even the strongest spirit can be broken with love."