A review by ndenitto
Assignment in Eternity by Robert A. Heinlein

4.0

The Gulf: A superspy working for a secret organization gets recruited by an even SUPERER SECRETER organization to learn to tap in to his unknown mental abilities. This new group believes a race of supermen capable of thinking at a superhuman level will become the new leading species on the planet. They want to train these adepts to bring peace to the world.

Elsewhen: A college professor discovers the key to interdimensional time travel. Apparently it's just sitting down quietly for 30 minutes. Anyway, he teaches 5 students the skill and they all have various adventures in time and space.

Legacy Lost: A college professor, a surgeon, and a student discover that all humans are capable of things like ESP, telekinesis, flight, and anything involving mind over matter, if they exercise the right portion of their brain.

Jerry Was a Man: A wealthy woman discovers that a company that genetically grows humanoid workers treats the apeish beings poorly, and kills them when they run out of usefulness. This is the story of her fight to have them recognized as men.