Life is a river, so is thought,

I woke up in the midnight. I could not fall sleep again. It is too early to go outsite to do my route exercise and self-training.
Nature has just revealed me that life is a just like a river, so is thought. What happend iwas that I wrote a blog yesterday about the same topic "go to court". When I finished, I clicked the submit button. unexpectedly, I was asked to input my username and password. The writing was just disappeared. I started to write again. I could catch some of the ideas in the previous writing, however, I could not catch the whole picture of the last wrting. Language is a flow of thought. It can not be repeated completely no matter how hard you are trying to. It is just a reflection of his current thought. It has the time stamp of every miliseconds.
It seems that everything is changing every minute. Something must be stable to keep the world to be predictable. What are the stable things here? They are natural laws, principles. If  a person is governed by principles, he/she is stable and dependable, trustworthy. If a person is governed by moment of thoughts, she/he may change every minute.