The writer’s duty is to tell the truth, even when it is uncomfortable.

I sing not for awards, but for love.

"The best way to lead is to be vulnerable."

Though the water running in the fountain be every one's, yet who can doubt, but that in the pitcher is his only who drew it out?

In the context of computational learning, the concept of 'probably approximately correct' (PAC) learning provides a framework for understanding the efficiency and feasibility of learning algorithms.