電子系統(tǒng)中的拓撲保護概念是一個深刻的見解,它連接了抽象數(shù)學(xué)和實用物理學(xué)。
The great question which, in all ages, has disturbed mankind, and brought on them the greatest part of their mischiefs, has been, not whether there be power in the world, nor whence it came, but who should have it.