Give thy thoughts no tongue.

I very rarely think in words at all. A thought comes, and I may try to express it in words afterwards.

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

The best thoughts most often come in the morning after waking, while still in bed or while walking.

The highest possible stage in moral culture is when we recognise that we ought to control our thoughts.

All good thoughts and ideas mean nothing without action.