Personality is immediately apparent, from birth, and I don't think it really changes.
I was made exactly the way I was meant to be made in who I am and my personality and the way I was born.
Children come into the world with a lot of personality already imbedded in them.
Human nature is what Heaven supplies.
We don't invent our natures. They're issued to us along with our lungs, our pancreas and everything else.
Everything that's really worthwhile in life came to us free - our minds, our souls, our bodies, our hopes, our dreams, our ambitions, our intelligence, our love of family and children and friends and country.
A thing's innate disposition or God-given nature does not lie; whatever this innate disposition says is the truth.
People never will recollect that mere learning and mere cleverness are of next to no value in life, while energy and intellectual grip, the things that are inborn and cannot be taught, are everything.
Inherited aptitudes and traits of temperament count for quite as much as length of habituation in deciding what range of habits will come to dominate any individual's scheme of life.
So it is that the gods do not give all men gifts of grace - neither good looks nor intelligence nor eloquence.