In this quote, the speaker reflects on the contradictions within their views on love and marriage. Although they have criticized these institutions for a long time and acknowledge their own quirks, they realize that human desires can change over time. The metaphor of appetite suggests that what one finds appealing in youth may become intolerable in later years.
The speaker maintains that clever words and witty remarks should not deter someone from pursuing what they genuinely desire. Ultimately, they recognize the natural human need for companionship and the continuation of life, suggesting that despite their past reservations, they see the value in engaging with love and relationships.