Bachelors have consciences. Married men have wives. Henry Louis Mencken, "A Mencken Chrestomathy"
There is more of good nature than of good sense at the bottom of most marriages. Henry David Thoreau, "The Writings of Henry David Thoreau"
Marriage has its good side. It teaches you loyalty, forebearance, tolerance, self-restraint, and other valuable qualities you wouldn't need if you'd stayed single. Allan Pease, "Why men don't Listen and Women can't read Maps"
Marriage is like a war. There are moments of chivalry and gallantry that attend the victorious advances and strategic retreats, the birth or death of children, the momentary conquest of loneliness, the sacrifice that ennobles him who makes it. But mostly there are the long dull sieges, the waiting, the terror and boredom. Women understand this better than men; they are better able to survive attrition. Helen Hayes, "On Reflection"
Married life requires shared mystery even when all the facts are known. Richard Ford, "The Sportswriter"
A journey is like marriage. The certain way to be wrong is to think you control it. John Steinbeck, "Travels With Charley: In Search of America"
Love is moral even without legal marriage, but marriage is immoral without love. Ellen Key, "The Morality of Woman"