Like is always recognized by like.

• If there are two thieves in a company, they will at once recognize each other. If a thief goes from Paris to New York it will be very easy for him to find a brother there; someone else might take a very long time to find such a person, but he knows at once, 'This is a thief, this is my brother!'
• A cruel man attracts the cruelty of others.
• If we deceive another ever so little we shall at once find those who deceive us, even if deceit does not really belong to our nature.