The aspects of things that are most important for us are hidden because of their simplicity and familiarity. (One is unable to notice something because it is always before one’s eyes.) The real foundations of his enquiry do not strike a man at all

If in life we are surrounded by death, so too in the health of our intellect by madness.

I Once wrote: "In mathematics process and result are equivalent."

Nothing is more important for teaching us to understand the concepts we have than to construct fictitious ones.

Death is not an event in life: we do not live to experience death. If we take eternity to mean not infinite temporal duration but timelessness, then eternal life belongs to those who live in the present.

A logical picture of facts is a thought.

The real question of life after death isn't whether or not it exists, but even if it does what problem this really solves.