既竭吾才，如有所立卓尔。虽欲从之，末由也已。
出自《论语·子罕篇第九》。我曾经用尽全力，但是孔夫子仍然卓立在我的面前，我想要去追从他，但是总觉得没有办法能够追上去。
The synergy between theoretical computer science and applied mathematics has led to breakthroughs that were once thought impossible.
The challenge in computational learning theory is to understand the capabilities and limitations of learning algorithms.