Quote by Frege, Gottlob

"A thought is a proposition which we apprehend."

"The word 'number' is surely not without a sense; but when we have the sentence 'the number of roots of this equation is four', it seems very difficult to give the meaning of the word 'number' here."

"The content of a thought may have different kinds of parts."

"A concept is a function whose value is always a truth-value."

"Science helps us understand the world."

"I've witnessed the birth of science, and it continues to amaze me."

"I'm something of a scientist myself."

"The fusion process is self-sustaining now!"