"All things are in flux"

Speaker: Heraclitus

Heraclitus (circa 535 BCE - 475 BCE) was an ancient Greek philosopher who developed theories on change and permanence. He identified "change" as the essence of the universe, and he is best known for his philosophy of "panta rhei" (everything flows).

Explanation:

"All things are in flux" is a phrase that captures Heraclitus's philosophical insight that the nature of the world is constant change. He argued that everything in the natural world and human experience is in a state of continuous transformation. This perspective emphasizes his belief that nothing is fixed or unchanging. For example, he famously used the analogy of a river, where the water is constantly flowing, to illustrate that one cannot step into the same river twice, as it is always changing. This saying, even in modern times, is widely recognized as a reminder to embrace the transitory nature of life and the inevitability of change. It suggests the importance of not fearing change but rather accepting and adapting to it, offering valuable guidance not only in philosophical thought but also in practical life.