Data abstraction is the reduction of a particular body of data to a simplified representation of the whole.
解释：天道远离人间，人道则存在于身边的社会人事之中，可以就近掌握。对于人所难及的事物，如何能知道呢？
The best leaders are those most interested in surrounding themselves with assistants and associates smarter than they are.
"Books are like rivers that flow into the sea of our consciousness."