You're referring to the popular phrase "123, on dreaming"!

For those who may not know, this phrase is a quote from a famous speech by Steve Jobs, co-founder of Apple, at Stanford University in 2005. He was talking about his experiences and struggles, including being fired from Apple (his own company!).

In that context, he said: "Remembering that I'll be dead soon is the most important tool I've ever had... You don't have to be sick to need a doctor. And you don't have to be crazy to see a therapist. And you don't have to be dying to really appreciate how precious life is."

He then went on to say: "I'm 123, on dreaming" - which is often interpreted as him saying that at the age of 123 (a very old age!), he'll still be living his dreams and pursuing his passions.

The phrase has since become a popular meme and cultural reference, symbolizing the importance of chasing one's dreams and making the most of life.