Time rides with the old
At a great pace. As travellers on swift steeds
See the near landscape fly and flow behind them,
While the remoter fields and dim horizons
Go with them, and seem wheeling round to meet them,
So in old age things near us slip away,
And distant things go with us.
The traits the word 'childish' addresses are seen so often in adults that we should abolish this age-discriminatory word when it comes to criticizing behavior associated with irresponsibility and irrational thinking.
But thy strong Hours indignant work’d their wills, And beat me down and marr’d and wasted me, And tho’ they could not end me, left me maim’d To dwell in presence of immortal youth, Immortal age beside immortal youth, And all I was, in ashes. - Tithonus
Maeterlinck says that compared with ordinary truths mystic truths have strange privileges - they can neither age nor die. Beauty is eternal and ugliness, thank God, is ephemeral. Can there be any question as to which should attract the poet?