These are some quotes that I find to be great.  I will add to this post when I come across a great quote that rings true to me.

“Wise men speak because they have something to say; Fools because they have to say something.” – Plato

“Courage is knowing what not to fear.” – Plato

“Intellectual growth should commence at birth and cease only at death” – Einstein

“Only a life lived for others is a life worth while.” – Einstein

“Everything that can be counted does not necessarily count; everything that counts cannot necessarily be counted.” – Einstein

“Learn from yesterday, live for today, hope for tomorrow. The important thing is not to stop questioning.” – Einstein

Obviously, Einstein said a lot of great things, lol.