机械的完美在于以最小的摩擦和浪费产生预期的效果。
The perfection of machinery is to produce the desired effect with the least possible friction and waste.
Success is going from failure to failure without loss of enthusiasm.
The artist must be a servant of the invisible.
计算理论不仅仅是关于解决问题，还涉及理解可计算性的极限。
The joy of discovery is what keeps scientists going.