Galileo Galilei

By denying scientific principles, one may maintain any paradox.

Galileo Galilei

God is known by nature in his works, and by doctrine in his revealed word.

Galileo Galilei

I do not feel obliged to believe that the same God who has endowed us with sense, reason, and intellect has intended us to forgo their use.

Galileo Galilei

If I were again beginning my studies, I should follow the advice of Plato and start with mathematics.

Galileo Galilei

If you could see the earth illuminated while you were in a place as dark as night, it would look to you more splendid than the moon.

Galileo Galilei

In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual.

Galileo Galilei

Infinities and indivisibles transcend our finite understanding, the former on account of their magnitude, the latter because of their smallness; Imagine what they are when combined.

Galileo Galilei

It is a most beautiful and delightful sight to behold the body of the Moon.

Galileo Galilei

It is surely harmful to souls to make it a heresy to believe what is proved.

Galileo Galilei

It was granted to me alone to discover all the new phenomena in the sky and nothing to anybody else. This is the truth which neither envy nor malice can supress.

Galileo Galilei