To explain all nature is too difficult a task for anyone man or even for anyone age

Therefore, the causes assigned to natural effects of the same kind must be, so far as possible, the same.

Therefore to the same natural effects, we must, as far as possible, assign the same causes.

I do not feign hypotheses.

I understood. I have understood. I do understand.

Hypotheses non-fingo. Iframe no hypotheses.

I feign no hypotheses.

The Ignis Fatuus is a vapour shining without heat.

Whence arises all that order and beauty we see in the world?

Poetry is a kind of ingenious nonsense.

A body in motion tends to stay in motion unless acted on by an outside force.

If I have done the public any service, it is due to my patient thought.

The great ocean of truth lay all undiscovered before me.

If I had stayed for other people to make my tools and things for me, I had never made anything.

Where both are friends, it is right to prefer truth.

Let me think... I wonder if an anvil will drop like an apple?

Errors are not in the art but in the artificers.

I see I have made myself a slave to Philosophy.

It is the weight, not the numbers of experiments that are to be regarded.