It strikes me that all our knowledge about the structure of our Earth is very much like what an old hen would know of the hundred-acre field in a corner of which she is scratching.
In the struggle for survival, the fittest win out at the expense of their rivals because they succeed in adapting themselves best to their environment.
Even when we are quite alone, how often do we think with pleasure or pain of what others think of us – of their imagined approbation or disapprobation.
