Цитата на английском - 'We cannot solve our problems with the same thinking we used when we created them.'

— “Depend upon it, my dear, that when there are twenty, I will visit them all.” — Можете на это рассчитывать, моя дорогая, когда их будет двадцать, я навещу их всех.

Dictionary: depend upon it my dear that when there are twenty I will visit them all

Mr. Bennet was so odd a mixture of quick parts, sarcastic humour, reserve, and caprice, that the experience of three and twenty years had been insufficient to make his wife understand his character. Мистер Беннет представлял собой такое странное сочетание живости ума и саркастического юмора, замкнутости и взбалмошности, что двадцати трёх лет оказалось недостаточно для его жены, чтобы понять его характер.

Dictionary: mr bennet was so odd a mixture of quick parts sarcastic humour reserve and caprice that the experience of three and twenty years had been insufficient to make his wife understand his character

Her mind was less difficult to develop. Её собственный ум был устроен менее сложно.

Dictionary: her mind was less difficult to develop