When dealing with people, let ...

When dealing with people, let us remember that we are not dealing with creatures of logic. We are dealing with creatures of emotion, creatures bristling with prejudices and motivated by pride and vanity. ...Any fool can criticize, condemn, and complain - and most fools do. But it takes character and self-control to be understanding and forgiving.
When dealing with people, let us remember that we are not dealing with creatures of logic. We are dealing with creatures of emotion, creatures bristling with prejudices and motivated by pride and vanity. ...Any fool can criticize, condemn, and complain - and most fools do. But it takes character and self-control to be understanding and forgiving.

Quotes from the same author

Do you know the most important trait a man can have? It is not executive ability; it is not a great mentality; it is not kindliness, nor courage, nor a sense of humor, though each of these is of tremendous importance. In my opinion, it is the ability to make friends, which, boiled down, means the ability to see the best in man.
Happiness doesn't depend on any external conditions, it is governed by our mental attitude.
Success is getting what you want. Happiness is wanting what you get.
Most of the important things in the world have been accomplished by people who have kept on trying when there seemed to be no hope at all.
When fate hands us a lemon, let's try to make lemonade.