Pain is the absence of pleasure, pleasure is the absence of pain.

经济发展的关键不仅仅是资源或技术，而是正确的制度和政策。

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.

生命短暂，让它甜美。

Creativity requires the courage to let go of certainties.

解读：不同生活背景造就知识盲区，不能因他人不懂自己熟知之事就鄙夷，要放下傲慢，以包容开放心态交流，尊重差异，寻求共识。

无论一个人被认为多么自私，他的本性中显然存在某些原则，这些原则使他对别人的命运感兴趣，并将他们的幸福视为自己的必要，尽管他从中除了看到它时的快乐外一无所得。