Yogananda: Never be a slave to your senses
If you are a slave to your senses, you cannot be happy. If you are a master of your desires and appetites, you can be a really happy person. If you overeat against you will; if you wish anything contrary to your conscience; if you act wrongly, forced by your senses, against the wish of your Inner Self, then you cannot be happy. People who are slaves to the senses find that their evil habits compel them to do things that will hurt them. Stubborn bad habits bludgeon your will power every time it tries to take the lead and guide your thoughts to the kingdom of right action. The remedy lies in rescuing your will power from the imprisoning power of the senses.
– Paramahansa Yogananda