Head knowledge is good, but heart knowledge is indispensable. The training of the hands and feet must be added to make a rounded education. We must all learn these days to become spiritual pioneers if we would save the world from chaos.
It is characteristic of our age to endeavour to replace virtues by technology. That is to say, wherever possible we strive to use methods of physical or social engineering to achieve goals which our ancestors thought attainable only by the training of character. Thus we try so far as possible to make contraception take the place of chastity, and anesthetics to take the place of fortitude; we replace resignation by insurance policies and munificence by the Welfare state. It would be idle romanticism to deny that such techniques and institutions are often less painful and more efficient methods of achieving the goods and preventing the evils which unaided virtue once sought to achieve and avoid. But it would be an equal and opposite folly to hope that the take-over of virtue by technology may one day be complete.
With the gain of knowledge, connect the habit of imparting it. This increases mental wealth by putting it in circulation; and it enhances the value of our knowledge to ourselves, not only in its depth, confirmation and readiness for use, but in that acquaintance with human nature, that self-command, and that reaction of moral training upon ourselves, which are above all price.
Strong passions are the life of manly virtues. But they need not necessarily be evil because they are passions, and because they are strong. They may be likened to blood horses, that need training and the curb only, to enable those whom they carry to achieve the most glorious triumphs.
If I were to prescribe one process in the training of men which is fundamental to success in any direction, it would be thoroughgoing training in the habit of observation. It is a habit which every one of us should be seeking ever more to perfect.