I'll start. "Stupid people never learn their mistakes. Smart people learn from their own mistakes. Wisdom people learn from other people's mistakes." -My dad
Hi My friend, actually it's not your dad who said this, imam Ali (ع) the cousin of the profet Mouhammad(ص) said it in Arabic you can check on the internet.
And someone probably said it before Iman Ali, where is your quote? By the way you dropped this And now to give a quote, Life is like riding a bicycle, is all about keeping balance and keep moving.
"Never regret! If it was something good, it was incredible. If it was something bad, it was an experience."