It is so natural for us to consider our presence as...

It is so natural for us to consider our presence as indispensable in the world, so long as we have much to do in it, that the wisdom of retiring wholly from employments in advanced life may be questioned. Certainly, he who does so is in danger of finding, before long, that he has only given up the occupation to which he has been accustomed, for the new business of calculating the period of his decease.