解释:处于安全环境时要考虑到可能出现的危险,考虑到危险就会有所准备,事先有了准备就可以避免祸患。
Simplicity is prerequisite for reliability.
有些人希望事情发生,有些人希望事情会发生,而其他人则让它发生。
I want to disappear into the universe, become part of it.
The Federal Reserve is not currently forecasting a recession.
学习是系统中产生的任何变化,这种变化或多或少会永久性地改变其适应环境的能力。