Understanding the computational complexity of learning problems is essential for developing efficient algorithms.

读书时刻苦用心，才能达到一字千金的层次。

Success is not measured by profits alone, but by the positive impact we have on society.

真相就像一头狮子；你不需要为它辩护。放开它；它会自己辩护。

变化是不可避免的，但成长是可选的。