The sailing flight of birds is the only form of flight which is carried on for some length of time without the expenditure of power. (Otto Lilienthal)

The sailing flight of birds is the only form of flight which is carried on for some length of time without the expenditure of power.

Otto Lilienthal

Related topics

carry flight form length power

Related quotes

There are some circles in America where it seems to be more socially acceptable to carry a hand-gun than a packet of cigarettes. View quote
Katharine Whitehorn
I detest life-insurance agents: they always argue that I shall some day die, which is not so. View quote
Stephen Leacock
The effort to understand the universe is one of the very few things which lifts human life a little above the level of farce and gives it some of the grace of tragedy. View quote
Steven Weinberg
So long as the human spirit thrives on this planet, music in some living form will accompany and sustain it. View quote
Aaron Copland
The time of illusion, then, is the beautiful moment of passion; it represents the artistic zone in which the poet or romance writer ought to be free to do the very best that he can. View quote
Lafcadio Hearn