Don't wait until everything is just right. It will never be perfect. There will always be challenges, obstacles and less than perfect conditions. So what. Get started now. With each step you take, you will grow stronger and stronger, more and more skilled, more and more self-confident and more and more successful.
神经系统就像一个复杂的管弦乐队,每个神经元都在发挥自己的作用。
循环经济不是理想,只要我们致力于此,它是可以实现的现实。
忽视环境影响的生产力指标只是会计把戏,而非真正的进步。