Concerning alchemy it is more difficult to discover the actual state of things, in that the historians who specialise in this field seem sometimes to be under the wrath of God themselves; for, like those who write of the Bacon-Shakespeare controversy or on Spanish politics, they seem to become tinctured with the kind of lunacy they set out to describe.

Of all the intellectual hurdles which the human mind has confronted and has overcome in the last fifteen hundred years the one which seems to me to have been the most amazing in character and the most stupendous in the scope of its consequences is the one relating to the problem of motion.

[History is] the very servant of the servants of God, the drudge of all the drudges.

If history can do anything it is to remind us that all our judgments are merely relative to time and circumstance.

Very strange bridges are used to make the passage from one state of things to another; we may lose sight of them in our surveys of general history, but their discovery is the glory of historical research. History is not the study of origins; rather it is the analysis of all the mediations by which the past was turned into our present.

The study of the past with one eye upon the present is the source of all sins and sophistries in history. It is the essence of what we mean by the word "unhistorical."

The Whig interpretation of history ... is the tendency in many historians to write on the side of Protestants and Whigs, to praise revolutions provided they have been successful, to emphasise certain principles of progress in the past and to produce a story which is the ratification if not the glorification of the present.