Ex Africa semper aliquid novi. - Pliny the Elder
Nescire autem quid antequam natus sis acciderit, id est semper esse puerum. (To be ignorant of what occurred before you were born is to remain always a child.) - Marcus Tullius Cicero
And those people should not be listened to who keep saying the voice of the people is the voice of God, since the riotousness of the crowd is always very close to madness. (Nec audiendi qui solent dicere, Vox populi, vox Dei, quum tumultuositas vulgi semper insaniae proxima sit.) - Alcuin