These great quotes of wisdom instill a sense of profoundness in one. If you truly let yourself get influenced by these thoughts, then you yourself become much wiser.
It reflects what you do and say. It gives you the confidence to face different situations in life and helps you get rid of your insecurities because now you know how to handle them.
You can use these words spoken by the wisest of men to your life and drive your life in a way that can turn out to be more meaningful. You can, in turn, inspire those who require encouragement.
You really feel good when you can be of true use to someone else in times of their need. Helping one when in need with inspiration and providing mental strength is probably the best sort of help one can offer.
But you should make sure that you do not sound preachy. You can use some of these great quotes of wisdom of famous people to explain a situation to the person.
You then sound much more pragmatic and empathizing which helps you to better connect with the concerned person. So, read as much as you can and not only make yourself wiser but help others along the way.