Chance Favours The Trained Mind.

Worship The Spirit Of Criticism. If Reduced To Itself It Is Not An Awakener Of Ideas Or A Stimulant To Great Things, But, Without It, Everything Is Fallible; It Always Has The Last Word.

If You Suppress Laboratories, Physical Science Will Be Stricken With Barrenness And Death.

Nothing Is Lost And Nothing Is Created In The Operations Of Art As Those Of Nature.

There Does Not Exist A Category Of Science To Which One Can Give The Name Applied Science. There Are Sciences And The Applications Of Science, Bound Together As The Fruit Of The Tree Which Bears It.

Great Problems Are Now Being Handled, Keeping Every Thinking Man In Suspense; The Unity Or Multiplicity Of Human Races; The Creation Of Man 1,000 Years Or 1,000 Centuries Ago; The Fixity Of Species, Or The Slow And Progressive Transformation Of One Species Into Another; The Eternity Of Matter; The Idea Of A God Unnecessary: Such Are Some Of The Questions That Humanity Discusses Nowadays.