Letters Archive

Rules of Debate

Rules of Debate
Recognizing logical fallacies is just one important aspect of critical thinking, and knowing about them can help you make better, more sound arguments of your own.

Columbus makes his pitch

Columbus makes his pitch
Columbus had a big dream - to find a new route to Asia by sailing west across the Atlantic, and his persistence paid off when he finally received approval for his voyage in 1492.

Habit Formation

Habit Formation
Learn how to form good habits using the 3Rs of habit formation: Remember, Repeat, and Reward.

Running experiments with the Skinner box

Running experiments with the Skinner box
The Skinner box was a controlled environment for running experiments, and B.F. Skinner discovered that the timing and frequency of rewards could dramatically affect behavior

Skinner and his box

Skinner and his box
This letter introduces B.F. Skinner, an influential psychologist who expanded on Pavlov's ideas about classical conditioning and operant conditioning through his experiments with pigeons and rats in a 'Skinner box.'

Pavlov's Dogs

Pavlov's Dogs
Discover how Russian scientist Ivan Pavlov accidentally discovered classical conditioning and its impact on our behaviors and reactions!

You don't have the fire

You don't have the fire
The world-famous violinist told the young man that he lacked the fire, which changed his life and inspired him to keep pushing through initial difficulties in everything he did.

Claquers

Claquers
In the 19th century, theater managers hired claques to cheer for shows and guide the audience's reaction, but some claques began blackmailing performers, leading to their eventual decline.