There are many Beths in the world, shy and quiet, sitting in corners till needed, and living for others so cheerfully that no one sees the sacrifices till the little cricket on the hearth stops chirping, and the sweet, sunshiny presence vanishes, leaving silence and shadow behind.
在数学中，你并不理解事物。你只是习惯了它们。
The companies that thrive will be those that turn environmental challenges into business opportunities.
