t is an old saying which holds true in daily life. Tt means that we should prevent a disease by observing a simple rule of ‘hygiene instead of later on letting the disease spread and require loti of efforts for its cure. Prevention is always better than cure because i,t nips the trouble in the bud. This principle is highly useful in daily life and can save a lot of botheration vvhich.woukl , otherwise have to be faced. ‘A stitch in time saves nine’ is another saying which means more or less the same thing.