What is the principle of all things of the universe for the following philosophers

Thales
Anaximander
Anaxagoras
Pythagoras
Anaximenes
Heraclitus

Thales: The principle of all things for Thales was water. He believed that water was the fundamental substance from which all things originated.

Anaximander: Anaximander proposed that the principle of all things was the indefinite or boundless, known as the "apeiron." He believed that the universe came from an infinite, eternal, and unchanging substance.

Anaxagoras: Anaxagoras suggested that the principle of all things was a primordial mixture of infinite particles or "seeds" known as "nous." The universe was formed by the separation and rearrangement of these particles.

Pythagoras: Pythagoras believed that the principle of all things was numbers. He argued that everything in the universe could be understood and explained through mathematical relationships.

Anaximenes: Anaximenes asserted that the principle of all things was air. He claimed that air, in its different states of condensation and rarefaction, could give rise to all other substances in the world.

Heraclitus: Heraclitus proposed that the principle of all things was the concept of perpetual change and flux. He famously stated that "everything flows," suggesting that the universe is in a constant state of becoming and transformation.

1. Thales: Thales, an ancient Greek philosopher, believed that the principle of all things in the universe is water. According to him, water is the fundamental substance from which everything else is derived.

2. Anaximander: Anaximander, another ancient Greek philosopher, posited that the principle of all things is an indefinite, boundless substance called the "apeiron." This concept refers to a substance that is infinite, eternal, and contains the potential for all things to arise.

3. Anaxagoras: Anaxagoras, a pre-Socratic philosopher, proposed that the principle of all things is a cosmic mind known as "nous." According to him, the universe is made up of infinitely divisible particles and the one guiding force behind these particles is the cosmic mind or intelligence.

4. Pythagoras: Pythagoras, a philosopher and mathematician, believed that the principle of all things is numbers. He considered numbers to be the key to understanding the structure and essence of the universe. Pythagoreans believed that the entire universe operates according to mathematical principles.

5. Anaximenes: Anaximenes, a Greek philosopher, put forward the principle that all things in the universe are made up of air or "aer." He believed that through processes of rarefaction and condensation, air could transform into other substances and govern the existence and changes in nature.

6. Heraclitus: Heraclitus, an ancient Greek philosopher, proposed that the fundamental principle of all things is perpetual change or flux. He believed that everything in the universe is in a constant state of transformation, and the underlying reality is the process of becoming rather than being. He famously stated, "Everything flows."