Things past redress are now with me past care. (Richard II)
Though care killed a cat, thou hast mettle enough in thee to kill care. (Much Ado About Nothing)
Everybody knows if you are too careful you are so occupied in being careful that you are sure to stumble over something.
No one cares how much you know, until they know how much you care.
Monotony is the awful reward of the careful.
That’s the difference between governments and individuals. Governments don’t care, individuals do.
Unless someone like you cares a whole awful lot, nothing is going to get better. It’s not. (“The Lorax”)