Thou would'st have […] melted down thy youth.

Stink eye is a Hawaiian pidgin expression for a disapproving glance, a mean or dirty look.

whose first composure and origination requires a higher and nobler Constituent than either Chance or the ordinary method of meer Natural causes.

If the humiliation and baseness of such an acquiescence would not have revolted the self-love and pride of a man like Sir Philip Francis, at any rate he was not a fool, and the mere risk of detection and deplumation, which might have happened any day, would have prevented him from enduring his false feathers.