We are what our thoughts have made us; so take care about what you think. Words are secondary. Thoughts live; they travel far.

We are what we think. All that we are arises with our thoughts. With our thoughts, we make the world.

Nothing can harm you as much as your own thoughts unguarded.

Anger will never disappear so long as thoughts of resentment are cherished in the mind.

Reading Clausewitz makes you take your own thoughts a little less seriously.

Give thy thoughts no tongue.