“过去是一个陌生的国度；他们在那里做不同的事情。”
"The past is a foreign country; they do things differently there."
The idea is not to have any 90-degree angles. In the beginning, there was the diagonal. The diagonal comes from the idea of the explosion which "re-forms" the space.
I've found time can heal most anything, and you just might find what you're looking for.
如果物体处于静止状态或作匀速直线运动，只要没有外力作用，物体将保持静止状态或匀速直线运动状态。