“It takes a long time to become a person.”
“It takes a very long time to become young.”
“A wise person is like a smoothly polished rock: it takes time to become either.”
“Strangers take a long time to become acquainted, particularly when they are from the same family.”
“I'll take an earnest person over a hip person every time, because hip is short term. Earnest is long term.”
“That was the danger of pretending to be someone else all the time. If you do it long enough, eventually you start to become that person.”