For every dollar you spend purchasing something substantial， expect to pay a dollar in repairs， maintenance， or disposal by the end of its life.
你每花一块钱购买一些实质性的东西，预计在其寿命结束时要支付一块钱的维修、保养或处理费用。
The beauty of literature lies in its ability to capture the ineffable, to give form to the formless.
文学的美在于它能够捕捉不可言喻的东西，给无形的东西以形式。
数学不仅仅是关于数字、方程、计算或算法：它是关于理解的。
