效率是以正确的方式做事,而效能则是做正确的事。
自然界运行的规律就是,发展到尽头则走向反面,发展到极盛则走向衰落。
The future belongs to those who believe in the beauty of their dreams.
The future belongs to those who believe in the beauty of their dreams.
The periodic table is not just a chart; it’s a story of the universe.