The Thing Is, Not To Stop Questioning.

I Never Failed In Mathematics. Before I Was Fifteen I Had Mastered Differential And Integral Calculus.

Who Would Have Thought Around 1900 That In Fifty Years Time We Would Know So Much More And Understand So Much Less.

Joy In Looking And Comprehending Is Nature's Most Beautiful Gift.

Don't Let Your Brain Interfere With Your Heart.

What Is Inconceivable About The Universe Is That It Is At All Conceivable.