So far as we are human, what we do must be either evil or good: so far as we do evil or good, we are human: and it is better, in a paradoxical way, to do evil than to do nothing: at least we exist.
The evil implanted in man by nature spreads so imperceptibly, when the habit of wrong-doing is unchecked, that he himself can set no limit to his shamelessness.
We cannot afford merely to sit down and deplore the evils of city life as inevitable, when cities are constantly growing, both absolutely and relatively. We must set ourselves vigorously about the task of improving them; and this task is now well begun.
We must recognise that duty and morality vary under different circumstances; not that the man who resists evil is doing what is always and in itself wrong, but that in the different circumstances in which he is placed it may become even his duty to resist evil.
When an evil-doer, seeing you practise goodness, comes and maliciously insults you, you should patiently endure it and not feel angry with him, for the evil-doer is insulting himself by trying to insult you.