He who acts (with an ulterior purpose) does harm; he who takes hold of a thing (in the same way) loses his hold. The sage does not act (so), and therefore does no harm; he does not lay hold (so), and therefore does not lose his hold. (But) people in their conduct of affairs are constantly ruining them when they are on the eve of success. If they were careful at the end, as (they should be) at the beginning, they would not so ruin them.