MANNERS are the ornament of action, and there is a way of speaking a kind word, or of doing a kind thing, which greatly enhances its value. 

THE gentle minde by gentle deeds is knowne;
For a man by nothing is so well bewrayed
As by his manners.

…one resents keenly that class of people who are honest and well meaning, but who are persistently discourteous and are not ashamed

LIFE is not so short but that there is always time enough for courtesy.

COURTESY is really doing unto others as you would be done unto, and the heart of it lies in a careful consideration for the feelings of other people. 

THE highest we can attain to is not knowledge, but sympathy with intelligence.

IF we are not responsible for the thoughts that pass our doors, we are at least responsible for those we admit and entertain.

we must let nothing pass our lips that charity would check;  we must be always ready to confess our ignorance, and to be silent

NOTHING, in our Lord’s wisdom, strikes me more than His moderation with regard to error.