Without theory, practice is but routine born of habit. Theory alone can bring forth and develop the spirit of inventions.

Inspiration is the impact of a fact on a well-prepared mind

We affirm the neutrality of Science ... Science is of no country. ... But if Science has no country, the scientist must keep in mind all that may work towards the glory of his country. In every great scientist will be found a great patriot.

Luck favors the mind that is prepared.

... by chance you will say, but chance only favors the mind which is prepared.

There is no such thing as a special category of science called applied science; there is science and its applications, which are related to one another as the fruit is related to the tree that has borne it.

The more I study nature, the more I stand amazed at the work of the Creator. Science brings men nearer to God.