ideas about time and space 1. Objects are constantly changing by exchange the particles. From the microscopic aspect to macroscopic aspect, with the constantly accumulation, from quantitative to qualitative change. 2. Changing happens in the unimaginable minimum of time, it shows changing occurs continuing from the beginning of the world to the end of the universe. 3. The surface of object is particles. Those particles are unstable so the cloud constituted by particles is exists and also not exist. And particles also have their own virtual cloud, it means all of the matter in the universe follow the rule of constantly changing. 4. The concept of time is perceived by people. Different scale of ‘people’ use different length of time. In the macroscopic aspect, the instant even cannot be aware by people, the same length of time in the microscopic aspect is as long as eternal. Changing is the movement of particles, occurs everywhere and every moment. People use the observable and organized changing to perceive the passage of time. For instance, people define day time by the period cycle of the sun. Changing is not a circle, matter change from an ordered situation to a discorded situation. Although sunrise and sunset every day, it’s not the same sunrise and sunset, so time is not in a circle, the beginning and the end of a day is not the same beginning and end of the other day, not even an instant moment is repeating. Time has a direction. If there is no more changing, all of the matter maintain their situation, from the past to the future, then time lost its meaning. So changing is the rule to measure time.