Biology Tutoring in Sierra Madre

What other dungeon is so dark as one's own heart. What jailer so inexorable as one's self?
Nathaniel Hawthorne

We learn by teaching.
Traditional Proverb

Math is radical!

There are things which seem incredible to most men who have not studied math.
Aristotle

He who is afraid to ask is ashamed of learning.
Danish Proverb

To isolate math from the practical demands of the sciences is to invite the sterility of a cow shut away from the bulls.
Pafnuty Lvovich

Pure math is, in its way, the poetry of logical ideas.
Roger Bacon

Biology Tutoring in Sierra Madre