To put one brick upon another, <br />Add a third and then a forth, <br />Leaves no time to wonder whether <br />What you do has any worth. <br /> <br />But to sit with bricks around you <br />While the winds of heaven bawl <br />Weighing what you should or can do <br />Leaves no doubt of it at all.<br /><br />Philip Larkin<br /><br />http://www.poemhunter.com/poem/to-put-one-brick-upon-another/
