All philosophy lies in two ...

All philosophy lies in two words, sustain and abstain.
All philosophy lies in two words, sustain and abstain.

More phrases

Don't settle in the land of barely enough. That is where you are, it is not who you are. That's your location, it's not your identity. No matter what it looks like, have an abundant mentality.
The by-product is that they more people you help, the "richer" you become, mentally, emotionally, spiritually, and definitely financially.
 T. Harv Eker
Happiness doesn't depend on any external conditions, it is governed by our mental attitude.
The truth is incontrovertible. Malice may attack it, ignorance may deride it, but in the end, there it is.
To improve is to change; to be perfect is to change often.

Quotes from the same author

Men are disturbed not by things, but by the view which they take of them.
It is the nature of the wise to resist pleasures, but the foolish to be a slave to them.
Keep silence for the most part, and speak only when you must, and then briefly.
Know, first, who you are, and then adorn yourself accordingly.
We have two ears and one mouth so that we can listen twice as much as we speak.