"Suicide, moreover, was at the time in vogue in Paris: what more suitable key to the mystery of life for a skeptical society?"

In this quote, Honore de Balzac is commenting on the prevalence of suicide in Paris throughout his time. He recommends that this act of taking one's own life was viewed as fashionable or stylish in the city. Balzac then postures a thought-provoking concern, questioning if this widespread acceptance of suicide was a reflection of the society's suspicion towards the significance of life. He suggests that perhaps, in a society that is uncertain and questioning of the purpose of existence, suicide may seem like a sensible option or a way to unlock the secret of life. This quote highlights the societal mindsets and beliefs towards suicide and the much deeper implications it might have on the human mind.