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.

I'm not afraid to die, I'm afraid not to have tried.

Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.

Law is not morality; do not expect it to accomplish what only morality can.

我必须拥有鲜花，永远，永远。

The future of mining lies in technology and sustainable practices.

Old paint on canvas, as it ages, sometimes becomes transparent. When that happens it is possible, in some pictures, to see the original lines: a tree will show through a woman's dress, a child makes way for a dog, a large boat is no longer on an open sea. That is called pentimento because the painter 'repented,' changed his mind. Perhaps it would be as well to say that the old conception, replaced by a later choice, is a way of seeing and then seeing again.

In every character, there is a part of me.

逝者从未真正离去，他们活在我们讲述的故事中。

可持续性不是一种选择，而是我们对后代的责任。