Teach thy tongue to say I do not know and thou shalt progress.
— Maimonides

We don't need lists of rights and wrongs, tables of do's and don'ts: we need books, time, and silence. Thou shalt not is soon forgotten, but Once upon a time lasts forever.
— Philip Pullman

'Thou shalt not' is soon forgotten, but 'Once upon a time' lasts forever.
— Philip Pullman

Buy what thou hast no need of and ere long thou shalt sell thy necessities.
— Benjamin Franklin

Thou shalt love thy neighbor as thyself. Roman 13:9
— Bible