Every man who says frankly and fully what he thinks is so far doing a public service. We should be grateful to him for attacking most unsparingly our… - John Stuart Mill

The sole object of Logic is the guidance of one's own thoughts: the communication of those thoughts to others falls under the consideration of Rhetoric, in the large sense in which that art was conceived by the ancients; or of the still more extensive art of Education.

Most persons have but a very moderate capacity of happiness. Expecting...in marriage a far greater degree of happiness than they commonly find, and knowing not that the fault is in their own scanty capability of happiness.

It's hardly possible to overstate the value, in the present state of human improvement, of placing human beings in contact with other persons dissimilar to themselves, and with modes of thought and action unlike those with which they are familiar. Such communication has always been... one of the primary sources of progress.