But if the young are never tired of erring in conduct, neither are the older in erring of judgment.

Travelling is the ruin of all happiness. There's no looking at a building here after seeing Italy.

I never pretend to be so superior a being as to be above having and indulging a hobby horse [her journal writing], and while I keep mine within due bounds and limits, nobody, I flatter myself, would wish to deprive me of the poor animal: to be sure, he is not formed for labour, and is rather lame and weak, but then the dear creature is faithful, constant, and loving, and though he sometimes prances, would not kick anyone into the mire, or hurt a single soul for the world--and I would not part with him for one who could win the greatest prize that ever was won at any races.

Insensibility, of all kinds, and on all occasions, most moves my imperial displeasure

How little has situation to do with happiness. The happy individual uses their intelligence to realise things could be worse and therefore is grateful and happy. The unhappy individual does the opposite!

You must not sneeze. If you have a vehement cold you must take no notice of it; if your nose membranes feel a great irritation you must hold your breath; if a sneeze still insists upon making its way you must oppose it keeping your teeth grinding together; if the violence of the pulse breaks some blood-vessel you must break the blood-vessel -- but not sneeze.

to diminish expectation is to increase enjoyment.