The insights of others continually add to our understanding of what is going on and how the world works. Daily each of us draws upon an immense and growing store of wisdom. We should never cease learning.
● I learn that the population of the world, in spite of slower growth and even declining numbers in some countries, will continue to rise and rise towards 11 billion in this century. Here is what John Stuart Mill wrote on the subject in his Principles of Political Economy first published in 1848 when the world’s population was not more than a sixth of what it is now:
