Look twice before you leap.
Beware of one who has nothing to lose.
Whenever our neighbor's house is on fire, it cannot be amiss for the engines to play a little on our own.
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.
To withdraw is not to run away, and to stay is no wise action, when there's more reason to fear than to hope.
Beware of silent dogs and still waters.
Be slow of tongue and quick of eye.
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.
Of all forms of caution, caution in love is perhaps the most fatal to true happiness.
Those who prepared for all the emergencies of life beforehand may equip themselves at the expense of joy.
He that is over -- cautious will accomplish little.