must seize the reins, A Human Strategy by Matt Berry, aphorism 172
172
Perhaps one can only hold oneself responsible for one’s destination in old age. In youth, one’s drives are so strong and full of energy that the last thing one will do is rein oneself in. Only after a few years do one’s drives recede to the point where one can ... must seize the reins ... but as one who walks an old horse. To be the exception here ...