Newton did not know what happened to the apple, and I can prove this when the next eclipse comes.

[O]nly if every individual strives for truth can humanity attain a happier future; the atavisms in each of us that stand in the way of a friendlier destiny can only thus be rendered ineffective.

To obtain an assured favorable response from people, it is better to offer them something for their stomachs instead of their brains.

All men are ignorant, just in different fields.

But their intervention makes our acts to serve ever less merely the immediate claims of our instincts.

Only six men in the world know about relativity. I am not one of them. When I ask them to explain, they confused me.

Education is only a ladder to gather fruit from the tree of knowledge, not the fruit itself