When you are done changing, you're done.
Little leaks sink the ship.
A slip of the foot you may soon recover, but a slip of the tongue you may never get over.
If you want to make a friend, let someone do you a favor.
Truth and sincerity have a certain distinguishing native lustre about them which cannot be perfectly counterfeited; they are like fire and flame, that cannot be painted.
People are best convinced by things they themselves discover.