If I have seen further it is by standing on the shoulders of Giants.

I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of truth lay all undiscovered before me.

I frame no hypotheses.

The important thing is not to stop questioning. Curiosity has its own reason for existing.

-- Albert Einstein

Truth is sought for its own sake. And those who are engaged upon the quest for anything for its own sake are not interested in other things.

-- Ibn al-Haytham

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

-- Galileo Galilei

All truths are easy to understand once they are discovered; the point is to discover them.

-- Galileo Galilei

Truth is always found among the minority.

-- Hideki Yukawa

Nothing in life is to be feared, it is only to be understood. Now is the time to understand more, so that we may fear less.

-- Marie Curie