Once any group in society stands in a relatively deprived position in relation to other groups, it is genuinely deprived.

All men naturally hate each other. We have used concupiscence as best we can to make it serve the common good, but this is mere sham and a false image of charity, for essentially it is just hate.

I do desire we may be better strangers.

Do not neglect to show hospitality to strangers, for by doing that some have entertained angels without knowing it.

I am a man: I consider nothing human alien to me.

If a man be gracious and courteous to strangers, it shows he is a citizen of the world, and that his heart is no island cut off from other lands, but a continent that joins to them.

Nationalism is an infantile disease, the measles of mankind.

The almost insoluble task is to let neither the power of others, nor our own powerlessness, stupefy us.

Patriotism is an ephemeral motive that scarcely ever outlasts the particular threat to society that aroused it.

There is no foreign land; it is the traveler only that is foreign.

All of life is a foreign country.

At the bottom of enmity between strangers lies indifference.