The chain is only as strong as its weakest link, for if that fails the chain fails and the object that it has been holding up falls to the ground.

In every chain of reasoning, the evidence of the last conclusion can be no greater than that of the weakest link of the chain, whatever may be the strength of the rest.

The chain is only as strong as its weakestlink, for if that fails the chain fails and the object that it has been holding up falls to the ground.

It appears evident, therefore, that those actions only can truly be called virtuous, and deserving of moral approbation, which the agent believed to be right, and to which he was influenced, more or less, by that belief.