There is little that separates humans from other sentient beings - we all feel joy, we all deeply crave to be alive and to live freely, and we all share this planet together.
The joy of the Lord will arm us against the assaults of our spiritual enemies, and, put our mouths out of taste for those pleasures with which the tempter baits his hooks.
Things in which we do not take joy are either a burden upon our minds to be got rid of at any cost; or they are useful, and therefore in temporary and partial relation to us, becoming burdensome when their utility is lost; or they are like wandering vagabonds, loitering for a moment on the outskirts of our recognition, and then passing on. A thing is only completely our own when it is a thing of joy to us.
The only history is a mere question of one's struggle inside oneself. But that is the joy of it. One need neither discover Americas nor conquer nations, and yet one has as great a work as Columbus or Alexander, to do.