One criticizes actions that one does not understand.
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One must be careful before committing oneself, after one must continue.
In the making
One must revisit a misunderstanding if one wants to dispel it. If needed, one can seek advice. One may abandon the small differences.
Proof (Pivot's method)
One is asked to hurry because the others have rushed.
One comes within an inch of an incident after the others have destroyed an important work.