Few of these programs produce reliable knowledge about what works.

The root problem here is the question of how we can arrive at absolutely certain and reliable knowledge.

Many leading scientists do not consider that science can give absolutely reliable and unchallengeable knowledge.

He could thus plan his operations with reliable knowledge of what the opposing forces were.

The end-product of science is reliable information, in other words knowledge.

But in 1820 "these islands were outside the bounds of what they considered to be reliable knowledge."

Sorai consulted the ancient works to get more reliable knowledge.

Actually, science is something much broader: the acquisition of reliable knowledge about the world.

But we need both types of studies if we are to acquire reliable knowledge.

The founders early recognized that professional teachers need reliable knowledge about the conditions under which children learn most effectively.