"By shading off, as I have done, the portion of the area of the diagram according to the individual age, every one may see how much of life is consumed, and what is left"

This quote by Warren De la Rue is referring to a diagram that he has created to show the quantity of life that is consumed by age. By shading off the part of the area of the diagram according to the individual age, De la Rue is highlighting the value of understanding how much of life is taken in and just how much is left. This quote is a reminder that life is finite and that it is essential to maximize the time we have. It is a call to action to be mindful of how we invest our time and to ensure that we are taking advantage of our lives. De la Rue's quote is a tip that life is precious and that we should aim to maximize it. We should put in the time to value the minutes we have and to ensure that we are living our lives to the fullest.