Be good to yourself, be good to others.
Do not fall for myth, legend or superstition.
Follow principles, not men.
Learn to control your emotions rather than allow your emotions to control you.
It is fine to feel, we are human. But only make decisions based on reason & logic.
Never stop asking why; never stop seeking understanding.
The intelligent person is full of doubt, while it is the fool who is sure in his belief. (from Bertrand Russell)
Never stop questioning. Challenge every thought you hold dear. Anything worth believing is worth scrutiny.