Some of mankind's most terrible misdeeds have been committed under the spell of certain magic words or phrases.

Just like a turtle, we only make progress if we stick our neck out.

Whether a man lives or dies in vain can be measured only by the way he faces his own problems, by the success or failure of the inner conflict within his own soul. And of this no one may know save God.

Education is what is left after all that has been learnt is forgotten.

There is only one proved method of assisting the advancement of pure science-that of picking men of genius, backing them heavily, and leaving them to direct themselves.

Science emerges from the other progressive activities of man to the extent that new concepts arise from experiments and observations, and that the new concepts in turn lead to further experiments and observations.

Every vital organization owes its birth and life to an exciting and daring idea.