The Stupid Are Invincible.

Only Two Things Are Infinite, The Universe And Human Stupidity, And I'm Not Sure About The Former.

The Ideals Which Have Always Shone Before Me And Filled Me With The Joy Of Living Are Goodness, Beauty, And Truth.

I Simply Imagine It So, Then Go About To Prove It.

No, This Trick Won't Work... How On Earth Are You Ever Going To Explain In Terms Of Chemistry And Physics So Important A Biological Phenomenon As First Love?

However We Select From Nature A Complex [of Phenomena] Using The Criterion Of Simplicity, In No Case Will Its Theoretical Treatment Turn Out To Be Forever Appropriate (sufficient).... I Do Not Doubt That The Day Will Come When [general Relativity], Too, Will Have To Yield To Another One, For Reasons Which At Present We Do Not Yet Surmise. I Believe That This Process Of Deepening Theory Has No Limits.