Final answer:
Othello expresses that he would have rather remained ignorant of Desdemona's alleged infidelity than bear the pain of knowing, indicating the permanent loss of his inner peace and contentment.
Step-by-step explanation:
The quote “I had been happy, if the general camp, Pioneers and all, had tasted her sweet body, So I had nothing known. O, now, forever Farewell the tranquil mind! Farewell content!” comes from William Shakespeare's play Othello. It is spoken by Othello, who is expressing the torment and the loss of peace in his mind after becoming convinced that his wife, Desdemona, has been unfaithful. The tragic sentiment conveyed is that Othello would have preferred being ignorant of Desdemona's alleged infidelity, even if it were true, rather than bearing the pain of knowing. His phrase “Farewell the tranquil mind! Farewell content!” signifies the irretrievable loss of his inner peace and contentment, suggesting that his happiness is forever spoiled by jealousy and suspicion.