A commingling; intimate connection or dealings between persons or nations, as in common affairs and civilities, in correspondence or trade; communication; commerce; especially, interchange of thought and feeling; association; communion.
Love is something far more than desire for sexual intercourse; it is the principal means of escape from the loneliness which afflicts most men and women throughout the greater part of their lives. Bertrand Russell
Reading, solitude, idleness, a soft and sedentary life, intercourse with women and young people, these are perilous paths for a young man, and these lead him constantly into danger. Jean-Jacques Rousseau
In human intercourse the tragedy begins, not when there is misunderstanding about words, but when silence is not understood. Henry David Thoreau
The citizen's job is to be rude - to pierce the comfort of professional intercourse by boorish expressions of doubt. John Ralston Saul
Friendship is a disinterested commerce between equals; love, an abject intercourse between tyrants and slaves. Oliver Goldsmith