Depend upon it there comes a time when for every addition of knowledge you forget something that you knew before. It is of the highest importance, therefore, not to have useless facts elbowing out the useful ones.
It is human life. We are blown upon the world; we float buoyantly upon the summer air a little while, complacently showing off our grace of form and our dainty iridescent colors; then we vanish with a little puff, leaving nothing behind but a memory - and sometimes not even that. I suppose that at those solemn times when we wake in the deeps of the night and reflect, there is not one of us who is not willing to confess that he is really only a soap-bubble, and as little worth the making.
If we consider eternity, into that time never entered; eternity is not an everlasting flux of time, but time is as a short parenthesis in a long period; and eternity had been the same as it is, though time had never been.