"One: There is a low limit of weight……" — Joseph LeConte

"One: There is a low limit of weight [of about] 50 pounds beyond which it is impossible for an animal to fly. Two: The animal machine is far more effective than any we can hope to make. Three: The weight of any machine constructed for flying, including fuel and engineer, cannot be less than three or four hundred pounds. Is it not demonstrated that a true flying machine, self-raising, self-sustaining, self-propelling, is physically impossible?"

— Joseph LeConte

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5 Quotes by Joseph LeConte

Joseph LeConte has 5 quotes on this site. A few more worth reading:

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More Animal Quotes

This quote is filed under Animal Quotes, one of 5,037 quotes in that category. Here are a few more:

At his best, man is the noblest of all animals; separated from law and justice he is the worst. — Aristotle
Man is by nature a political animal. — Aristotle
To insult someone we call him 'bestial. For deliberate cruelty and nature, 'human' might be the greater insult. — Isaac Asimov
If you have men who will exclude any of God's creatures from the shelter of compassion and pity, you will… — Francis of Assisi
People are not going to care about animal conservation unless they think that animals are worthwhile. — David Attenborough
There are some four million different kinds of animals and plants in the world. Four million different solutions to the… — David Attenborough
Birds are the most popular group in the animal kingdom. We feed them and tame them and think we know… — David Attenborough
The only way to save a rhinoceros is to save the environment in which it lives, because there's a mutual… — David Attenborough
I'm not a propagandist, I'm not a polemicist; my primary interest is just looking at and trying to understand how… — David Attenborough
I'm not an animal lover if that means you think things are nice if you can pat them, but I… — David Attenborough
If you watch animals objectively for any length of time, you're driven to the conclusion that their main aim in… — David Attenborough
Steve Irwin did wonderful conservation work but I was uncomfortable about some of his stunts. Even if animals aren't aware… — David Attenborough

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