Divide each difficulty into as many parts as possible for a better solution.

Good sense is the most evenly distributed thing in the world.

Once in one's life, everything should be called into doubt.

I think, therefore I am.

All things flow.

-- Heraclitus

For Being is, and non-Being is not.

-- Parmenides

Everything perfect proceeds outward from its own perfection.

-- Proclus

All things are in all things, but in each in the way that suits its own nature.

-- Porphyry

For whom emptiness works, everything works. For whom emptiness does not work, nothing works.

-- Nagarjuna

To study the Way is to study the self. To study the self is to forget the self. To forget the self is to be enlightened by the ten thousand things.

-- Dōgen