that perhaps all integrity and uprightness may be at bottom only conventional. This is what Holbach, Helvetius, d'Alembert, and others of their time did; and, following out the theory, they endeavoured with great acumen to trace back all moral conduct to egoistic motives, however remote and indirect. That their position is literally true of most just actions, as having an ultimate foundation centred in the Self, I have shown above. That it is also true to a large extent of what is done in kindness and humanity, there can be no doubt; acts of this sort often arise from love of ostentation, still oftener from belief in a retribution to come, which may be dealt out in the second or even the third power; or they can be explained by other egoistic motives.

Nevertheless, it is equally certain that there occur actions of