“As therefore, when we consult, not our own pleasures, but that of our friends, our behaviour will be pleasing and agreeable; our first enquiry must be, what those particulars are, with which the greatest part of mankind are universally delighted; and what those are which, in general, they detest, as troublesome and offensive: For thus we shall easily discover, what kind of conduct, in our intercourse with others, is to be avoided, and what to be adopted and pursued.”
Source: Galateo: Or, A Treatise on Politeness and Delicacy of Manners, p. 7
Help us to complete the source, original and additional information
Giovanni della Casa 10
Roman Catholic archbishop 1503–1556Related quotes

No. 447 (2 August 1712).
The Spectator (1711–1714)

Environmentalism as a Religion (2003)

Book 1, p. 11
Cosmotheoros (1695; publ. 1698)

Day of Affirmation Address (1966)
Context: The help and the leadership of South Africa or of the United States cannot be accepted if we, within our own country or in our relationships with others, deny individual integrity, human dignity, and the common humanity of man. If we would lead outside our borders, if we would help those who need our assistance, if we would meet our responsibilities to mankind, we must first, all of us, demolish the borders which history has erected between men within our own nations — barriers of race and religion, social class and ignorance.
Our answer is the world's hope; it is to rely on youth. The cruelties and the obstacles of this swiftly changing planet will not yield to obsolete dogmas and outworn slogans. It cannot be moved by those who cling to a present which is already dying, who prefer the illusion of security to the excitement and danger which comes with even the most peaceful progress. This world demands the qualities of youth: not a time of life but a state of mind, a temper of the will, a quality of the imagination, a predominance of courage over timidity, of the appetite for adventure over the love of ease.

One who having loved His own which are in the world loves them to the end.
Source: Dictionary of Burning Words of Brilliant Writers (1895), P. 176.