Wissenschaft ist Macht.

[I]f in other sciences we should arrive at certainty without doubt and truth without error, it behooves us to place the foundations of knowledge…

— Roger Bacon

Knowledge of languages is the doorway to wisdom.

— Roger Bacon

It is not necessarily impossible for human beings to fly, but it so happens that God did not give them the knowledge of how…

— Roger Bacon

“Now there are four chief obstacles in grasping truth, which hinder every man, however learned, and scarcely allow anyone to win a clear title…

— Roger Bacon

There are four great sciences, without which the other sciences cannot be known nor a knowledge of things secured ... Of these sciences the…

— Roger Bacon

There are in fact four very significant stumbling blocks in the way of grasping the truth, which hinder every man however learned, and scarcely…

— Roger Bacon

All science requires mathematics. [Editors' summary of Bacon's idea, not Bacon's wording.]

— Roger Bacon

If in other sciences we should arrive at certainty without doubt and truth without error, it behooves us to place the foundation of knowledge…

— Roger Bacon

There are in fact four very significant stumblingblocks in the way of grasping the truth, which hinder every man however learned, and scarcely allow…

— Roger Bacon

To ask the proper question is half of knowing

— Roger Bacon

It is easier for a man to burn down his own house than to get rid of his prejudices.

— Roger Bacon

All sciences are connected; they lend each other material aid as parts of one great whole, each doing its own work, not for itself…

— Roger Bacon

All science requires mathematics. The knowledge of mathematical things is almost innate in us. This is the easiest of sciences, a fact which is…

— Roger Bacon

Half of science is asking the right questions.

— Roger Bacon

Vacuum stands and remains a mathematical space. A cube placed in a vacuum would not displace anything, as it would displace air or water…

— Roger Bacon