It can be set down as a broad, general principle that we cannot indulge in idleness and abundance during both the first and second half of our life. Study, application, industry, enthusiasm while we are young usually enable us to enjoy life when we grow older. But unless we toil and strive and earn all we can in the first half, the second half of our life is liable to bring disappointment, discomfort, distress. The time to put forth effort is when we are most able to do it, namely, in the years of our greatest strength. The law of compensation hasn't ceased to function.
B. C. Forbes