Albert Einstein struggled with his theory of everything because he lacked a guiding physical picture, which is essential for scientific breakthroughs.

Einstein believed in two types of God: the personal God of the Bible and the God of order, simplicity, harmony, and beauty, reflecting that the universe is not chaotic; it's beautiful and can be summarized on a single sheet of paper with all known laws of physics.

Einstein believed that if a measurement can be made without disturbing a system and gives a 100% certainty answer, then that measurement reveals an element of reality.

You probably don't know what energy is, and that's okay; even Einstein likely didn't fully grasp it in the context of General Relativity.

Even in old age, scientists remember the excitement of their first encounters with the universe, which continues to inspire them throughout their lives.

If you believe the universe is vast and we are infinitesimally small, it will shape your philosophical outlook differently than if you think the Earth is the center of the universe.

In a thought experiment, if we asked Albert Einstein a complex question about general relativity in 1907, he would take about eight years to solve it, while the latest AI models can now reproduce similar calculations in about a minute.

The concept of the beginning of infinity suggests that while there may be limits imposed by cosmological conditions, it is still up to us to determine how we fill the potential for knowledge and creativity.

Scientists often recall a pivotal moment from their childhood, around age 10, when they first realized the vastness of the universe beyond their immediate family.