We are certainly not Christ; we are not called on to redeem the world by our own deeds and sufferings, and we need not try to assume such an impossible burden. We are not lords, but instruments in the hand of the Lord of history; and we can share in other people’s sufferings only to a very limited degree. We are not Christ, but if we want to be Christians, we must have some share in Christ’s largeheartedness by acting with responsibility and in freedom when the hour of danger comes, and by showing a real sympathy that springs, not, from fear, but from the liberating and redeeming love of Christ for all who suffer. Mere waiting and looking on is not Christian behaviour. The Christian is called to sympathy and action, not in the first place by his own sufferings, but by the sufferings of his brethren, for whose sake Christ suffered.
— Dietrich Bonhoeffer, After Ten Years, 1942 (via)