A mousetrap always provides free cheese.
Always count the cost.
Be slow of tongue and quick of eye.
Beware of all enterprises that require a new set of clothes.
Beware of one who has nothing to lose.
Beware of silent dogs and still waters.
Beware of the man who works hard to learn something, learns it, and finds himself no wiser than before, Bokonon tells us. He is full of murderous resentment of people who are ignorant without having come by their ignorance the hard way.
Beware the hobby that eats.
Caution has its place, no doubt, but we cannot refuse our support to a serious venture which challenges the whole of the personality. If we oppose it, we are trying to suppress what is best in man –his daring and his aspirations. And should we succeed, we should only have stood in the way of that invaluable experience which might have given a meaning to life. What would have happened if Paul had allowed himself to be talked out of his journey to Damascus?
Caution is not cowardly. Carelessness is not courage
Caution is the confidential agent of selfishness.
Caution is the parent of safety.
Don't dance on a volcano.
Don't throw away the old bucket until you know whether the new one holds water.
Every human being has, like Socrates, an attendant spirit; and wise are they who obey its signals. If it does not always tell us what to do, it always cautions us what not to do.
Half the failures in life arise from pulling in one's horse as he is leaping.
Hasten slowly.
He that is over — cautious will accomplish little.
If one has to jump a stream and knows how wide it is, he will not jump. If he does not know how wide it is, he will jump, and six times out of ten he will make it.
It is a good thing to learn caution from the misfortunes of others.