The present is a point just passed.
数学不是关于数字、方程、计算或算法的:它是关于理解的。
My propositions are elucidatory in this way: he who understands me finally recognizes them as senseless.
"The past is not dead ground, and to traverse it is not a sterile exercise."
I'm not upset that you lied to me, I'm upset that from now on I can't believe you.