As far as self-confidence goes, so much of social media is about approval, getting likes, comparing our lives to others' - meanwhile, confidence is an inside job: it's about how you feel about yourself regardless of what anyone else does or thinks. It's a knowing that you're human, you're flawed, and you're awesome in your own way.
In the weakness of one kind of authority, and in the fluctuation of all, the officers of an army will remain for some time mutinous and full of faction, until some popular general, who understands the art of conciliating the soldiery, and who possesses the true spirit of command, shall draw the eyes of all men upon himself. Armies will obey him on his personal account. There is no other way of securing military obedience in this state of things.
In doing good, we are generally cold, and languid, and sluggish; and of all things afraid of being too much in the right. But the works of malice and injustice are quite in another style. They are finished with a bold, masterly hand; touched as they are with the spirit of those vehement passions that call forth all our energies, whenever we oppress and persecute.