解释：百姓参加了劳动就会因劳累而去思考如何节俭律己，若经常思考这些问题，就会使自己的心地善良起来；无所事事就会放肆起来，一旦放肆，就会忘掉善良，没有善良就会滋生作恶之心。

The challenge of computer science is not just to build faster machines, but to understand the very fabric of computational possibility.

The only limits in life are the ones you make.

I'm not a poet, I'm a trapeze artist.

The magical number seven, plus or minus two: some limits on our capacity for processing information.