永远不要在安全上妥协——它是我们所做一切的基石。
The role of the artist is to make the invisible visible.
释义:君子在面对挫折、困难的时候,应该反躬自问,修养品德。蹇(jiǎn),多指行动迟缓、困苦、不顺利的意思。
The complexity of a learning problem is often determined by the size and structure of the hypothesis space.