Yquotes.com

 

I am not to blame for putting forward, in the course of my work on science, any general rule derived from a previous conclusion.

 

Leonardo da Vinci

» Leonardo da Vinci - all quotes »

Similar quotes

 

Everything that has been said, and every conclusion that has been tentatively put forward, is quite frankly speculative and uncertain. We have tried to discuss whether present-day science has anything to say on certain difficult questions, which are perhaps set for ever beyond the reach of human understanding. We cannot claim to have discerned more than a very faint glimmer of light at the best; perhaps it was wholly illusory, for certainly we had to strain our eyes very hard to see anything at all. So that our main contention can hardly be that the science of to-day has a pronouncement to make, perhaps it ought rather to be that science should leave off making pronouncements: the river of knowledge has too often turned back on itself.

 

James Jeans

 

Moving forward in science is as much unwinding the distorted thinking of the past as it is putting a clearer idea on the table.

 

Craig Venter

 

...when we wish to demonstrate a general theorem, we must give the rule as applied to a particular case; but if we wish to demonstrate a particular case, we must begin with the general rule. For we always find the thing obscure which we wish to prove, and that clear which we use for the proof; for, when a thing is put forward to be proved, we first fill ourselves with the imagination that it is therefore obscure, and on the contrary that what is to prove it, is clear, and so we understand it easily. 40

 

Blaise Pascal

 

Science Of Energetics. Although the mechanical hypothesis just mentioned may be useful and interesting as a means of anticipating laws, and connecting the science of thermodynamics with that of ordinary mechanics, still it is to be remembered that the science of thermodynamics is by no means dependent for its certainty on that or any other hypothesis, having been now reduced, to a system of principles, or general facts, expressing strictly the results of experiment as to the relations between heat and motive power. In this point of view the laws of thermodynamics may be regarded as particular cases of more general laws, applicable to all such states of matter as constitute Energy, or the capacity to perform work, which more general laws form the basis of the science of energetics, — a science comprehending, as special branches, the theories of motion, heat, light, electricity, and all other physical phenomena.

 

William John Macquorn Rankine

 

If in war, from the beginning of the operations, everything is uncertain except such will and energy as the commander carries in himself, there cannot possibly be practical value for strategy in general principles, rules derived from them and systems built up upon the rules. … Strategy is a system of expedients. It is more than science, it is the translation of science into practical life, the development of an original leading thought in accordance with the ever-changing circumstances.

 

Helmuth von Moltke