Men have an obsession for wanting to know things that will upset them.

All men desire to be immortal.

A desire for knowledge is the natural feeling of mankind; and every human being, whose mind is not debauched, will be willing to give all he has to get knowledge.

Men can know the nature of things

All men want, not something to do with, but something to do, or rather something to be.

I want to know everything, he says.

"All men", said Aristotle, "by nature desire to know." The pursuit of truth, the effort to comprehend, arrange, interpret some aspect or other of the universe we perceive, is an activity of humanity which justifies, rewards and motivates itself. The study of something for its own sake, for the sake of knowing, understanding, grasping it and for nothing else, is an essential characteristic of education, lower or higher, though more obviously of higher education. The content of education must therefore be that which men would wish to know for its own sake.

All men have an instinct for conflict: at least, all healthy men.

Men love to wonder, and that is the seed of science.

There is no wish more natural than the wish to know.

We want to know not merely what men have been, even the best men of their day, but what men can and ought to be.

Men love to wonder, and that is the seed of our science.

All men by nature desire to know. An indication of this is the delight we take in our senses; for even apart from their usefulness they are loved for themselves; and above all others the sense of sight. For not only with a view to action, but even when we are not going to do anything, we prefer seeing (one might say) to everything else. The reason is that this, most of all the senses, makes us know and brings to light many differences between things.

All men have an equal disposition for understanding.