New International Version
"Teacher," he declared, "all these I have kept since I was a boy."

American Standard Version
And he said unto him, Teacher, all these things have I observed from my youth.

Berean Study Bible
“Teacher,” he replied, “all these I have kept from my youth.”

Douay-Rheims Bible
But he answering, said to him: Master, all these things I have observed from my youth.

English Revised Version
And he said unto him, Master, all these things have I observed from my youth.

King James Bible
And he answered and said unto him, Master, all these have I observed from my youth.

World English Bible
He said to him, "Teacher, I have observed all these things from my youth."

Young's Literal Translation
And he answering said to him, 'Teacher, all these did I keep from my youth.'

Mark 10:20 Additional Translations ...