I have no knowledge other than that gained through my own eyes. — Vannoccio Biringuccio Copy Share Image
[On the propulsive force of rockets] One part of fire takes up as much space as ten parts of air, and one part of… — Vannoccio Biringuccio Copy Share Image
I have no knowledge other than that gained through my own eyes. — Vannoccio Biringuccio Copy Share Image
The credulous ... advance the authority of hearsay in place of reasons for possible success or facts that can be demonstrated. — Vannoccio Biringuccio Copy Share Image
![“[On the propulsive force of rockets] One part of fire takes up as much space as ten parts of air, and one part of air takes up the space of ten parts of water, and one part of water as much as ten parts of earth. Now powder is earth, consisting of the four elementary principles, and when the…” quote by Vannoccio Biringuccio](https://sms4smile.com/quotes/img-quotes/f3a/vannoccio-biringuccio-79468_air_on-the-propulsive-force-of-rockets-one-p_567057.jpg)
