Everyone has something of special interest. For example, writers love to write and painters love to paint. We can develop ourselves better only after we understand our hobbies.
Everyone has something of their own special interest, for example, the writer loves to write, the painter loves to paint. Only when we understand our interests can we develop ourselves better.
Everyone has his own special interest in things, for example, writers love to write, painters love to draw. Only when we understand our own interests can we develop ourselves better.