A tautology’s truth is certain, a proposition’s possible, a contradiction’s impossible. — Ludwig Wittgenstein
Willpower is breath and heartbeat of life; Life blooms in the girdle of taut willpower. — Praveen Kumar
The danger of tautological propositions is considerable in discussions of the concept — Fritz Machlup
Being both entrepreneurial and social is no longer an oxymoron, but rather a tautology. — Jeremy Rifkin
Logic issues in tautologies, mathematics in identities, philosophy in definitions; all trivial, — Frank P. Ramsey
The Eleventh Plague hits disturbingly close to home An excellent, taut debut novel. — Suzanne Collins
To say thatauthority, whether secular or religious, supplies no ground for morality is — Joseph Addison
Enthusiasm is everything. It must be taut and vibrating like a guitar string. — Edson Arantes do Nascimento
The bow kept taut will quickly break, kept loosely strung, it will serve you when you need it. — Phaedrus
All correct reasoning is a grand system of tautologies, but only God can make direct use of that fact. — Herbert Simon
Propositions show what they say: tautologies and contradictions show that they say nothing. — Ludwig Wittgenstein
Once the last trace of emotion has been eradicated, nothing remains of thought but absolute tautology. — Theodor W. Adorno