Warren G. Bennis said this quote

Neoteny is more than retaining a youthful appearance, although that is often part of it. Neoteny is the retention of all those wonderful qualities that we associate with youth: curiosity, playfulness, eagerness, fearlessness, warmth, energy. Unlike those defeated by time and age, our geezers have remained much like our geeks – open, willing to take risks, hungry for knowledge and experience, courageous, eager to see what the new day brings. Time and lost steal the zest from the unlucky, and leave them looking longingly at the past. Neoteny is a metaphor for the quality – and the gift – that keeps the fortunate of whatever age focused on all marvelous undiscovered things to come.