We need examples of statements unless you’re talking generally then there is way too much information to cover for this questions but “Hold fast to dreams, For if dreams die
Life is a broken-winged bird, That cannot fly.” Is quote said by Langston Hughes. You can interpret this to have meaning to MLK because he literally writes a momentous speech called “I have a Dream”.
Yes, they are the ones who are there no matter what and we care for each other.
Octopuses can change their color of the skin by the blink of an eye. It depends on what kind of surroundings they are in. If in the ocean, then ocean blue, etc..
