These are all excellent.Give a man a fish, he eats for a day. Teach him to fish, he eats for life.
Fool me once, shame on you; fool me twice, shame on me.
Hope for the best, but prepare for the worst.
Here are some that I hate:
"A positive outlook creates a positive situation." (Fi?)
"Love is the answer." (Fi again?)
"Live life to the fullest." (Se)
"Live each day as though it were your last." (so, I should expect to be torn about by rabid circus clowns like when I dream about my own death every night?) (Se)
"You only live once." (Si)
And one I've generally found to be true, and I attempt to use in my dealing with others:
"You catch more flies with honey than with vinegar." That's actually true. Turns out, being nice helps people listen to you. Not always, but usually more than the alternative. (This is pretty Fe, I suppose)