You wake up in the morning and you look at your old spoon, and you say to yourself, 'Mick, it's time to get yourself a new spoon.' And you do.
To those who ask what the infinitely small quantity in mathematics is, we answer that it is actually zero. Hence there are not so many mysteries hidden in this concept as they are usually believed to be.
I pity the man who wants a coat so cheap that the man or woman who produces the cloth will starve in the process.