Quotes are like bible passages. There is one for every occasion and every perspective. Given one quote, you can find an equally poignant and contradictory quote.
Time and tide wait for no man!
Slow and steady wins the race!
This is why I cringe when I see people leading their lives based on quotes.
Being intelligent is not exactly the same as being smart, and no matter how intelligent you may be, if you cannot control the activities of the effects that stick to your consciousness after the fact of what has happened to you in the past, you can't preserve your own true self for a long time, especially in this modern age.
Intelligence is apparently correlated with depression and anxiety, as the more intelligent one is the more likely they are to question themselves and their world.