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"The past is a shadow that follows us, but it is the light ahead that guides our steps."
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。
A mind needs books like a sword needs a whetstone.
"In the realm of quantum physics, the observer is not just a passive viewer but an active participant in the unfolding of reality."