The mind is its own place, and in itself can make a heaven of hell, a hell of heaven.

The heart is the household divinity which, discharging its function, nourishes, cherishes, and quickens the whole body.

Don't wait until they tell you, you are ready. Show it. Do it.

我不是一个恶棍，我是一个现实主义者。

学习理论中的一个关键见解是，假设类的复杂性对于泛化至关重要。