What seems natural to us is probably just something familiar in a long tradition that has forgotten the unfamiliar source from which it arose. And yet this unfamiliar source once struck man as strange and caused him to think and to wonder.

The mathematical is that evident aspect of things within which we are always already moving and according to which we experience them as things at all, and as such things. The mathematical is this fundamental position we take toward things by which we take up things as already given to us, and as they must and should be given. Therefore, the mathematical is the fundamental presupposition of the knowledge of things.

Time is not a thing, thus nothing which is, and yet it remains constant in its passing away without being something temporal like the beings in time.

The world worlds, and is more fully in being than the tangible and perceptible realm in which we believe ourselves to be at home...By the opening up of a world, all things gain their lingering and hastening, their remoteness and nearness, their scope and limits. In a world's worlding is gathered that spaciousness out of which the protective grace of the gods is granted and withheld. Even this doom of the god remaining absent is a way in which the world worlds...All coming to presence...keeps itself concealed to the last.

We make a space inside ourselves, so that being can speak.

Technology is therefore no mere means. Technology is a way of revealing. If we give heed to this, then another whole realm for the essence of technology will open itself up to us. It is the realm of revealing, i.e., of truth

Spiritual superiority [consists in] deep dedication ... in the form of the most rigorous training, as commitment, resistance, solitude, and love.