Principle of least action

Definition and stakes

Portrait of M. E. Braddon M. E. Braddon John Marchmont's Legacy, Volume 2…

It is only after the fact that we recognise the awful importance which actions, in themselves most trivial, assume by reason of their consequences; and when the action, in itself so unimportant, in its consequences so fatal, has been in any way a deviation from the right, how bitterly we reproach ourselves for that false step!
Source: Gutenberg

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