Common sense is judgment without reflection, shared by an entire class, an entire nation, or the entire human race.
Giambattista VicoPeople first feel things without noticing them, then notice them with inner distress and disturbance, and finally reflect on them with a clear mind.
Giambattista VicoMen first feel necessity, then look for utility, next attend to comfort, still later amuse themselves with pleasure, thence grow dissolute in luxury, and finally go mad and waste their substance.
Giambattista Vico