Don’t ever underestimate the destructive power of sins of omission.

It is better to be looked over than overlooked.

If you're going to be a sinner, be the best sinner on the block.

all sins may be forgiven, but crimes must still be punished.

Sin ought to be something exquisite, my dear boy.

Let us not overlook vital things, because of the bulk of trifles confronting us.

Be not ashamed of mistakes and thus make them crimes.

There are many good people who are denied the supreme blessing of children, and for these we have the respect and sympathy always due to those who, from no fault of their own, are denied any of the other great blessings of life. But the man or woman who deliberately foregoes these blessings, whether from viciousness, coldness, shallow-heartedness, self-indulgence, or mere failure to appreciate aright the difference between the all-important and the unimportant — why, such a creature merits contempt as hearty as any visited upon the soldier who runs away in battle, or upon the man who refuses to work for the support of those dependent upon him, and who though able-bodied is yet content to eat in idleness the bread which others provide.

Never Ignore Evil.

My soul, never laugh at sin's fooleries, lest thou come to smile at sin itself. It is thine enemy, and thy Lord's enemy.

Love covers a multitude of sins’ (1 Peter 4:8). For where there is sin, there can be neither complete trust nor love, since love completely covers over sins and knows nothing of them. Not in such a way as if we had not sinned, but rather it wipes them away and drives them out, as if they had never existed.

Never forget that a saint is a sinner who keeps on trying.

A sin is anything that you do which goes against yourself. Everything you feel or believe or say that goes against yourself is a sin. You go against yourself when you judge or blame yourself for anything. Being without sin is exactly the opposite. Being impeccable is not going against yourself. When you are impeccable, you take responsibility for your actions, but you do not judge or blame yourself.

We may not pay Satan reverence, for that would be indiscreet, but we can at least respect his talents.