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Ideas worth practicing.

Courage to grow. Equal dignity. Practical compassion. A few qualities that inform how we want to act.

Selected by Mitchell · source review: 23 October 2026.

A little inspiration.
A little skepticism.
Room to change your mind.

THE SHOULDER COMMITTEE

Read the historical reflections below, or switch to Nerd mode for Mitchell’s personal influence board and report cards.

Three lives and traditions, considered through particular qualities worth practicing. These are starting points for reflection, not complete biographies.

1809–1865

Abraham Lincoln

Abraham Lincoln in Alexander Gardner’s 1863 portrait
Alexander Gardner, 1863. Public domain; restoration by Scewing. Displayed at reduced size, without further cropping. Image source · License / status

The courage to grow and act

Lincoln’s public position on slavery changed over time. His presidency included the Emancipation Proclamation and support for the Thirteenth Amendment. The useful lesson here is the willingness to reconsider a position and act on it.

That history is larger than one president. Enslaved people, abolitionists, soldiers, lawmakers and many others helped bring slavery to an end. Lincoln’s own record also contains racial prejudice and limits that should not be erased.

Read: Lincoln on Slavery · National Park Service

1929–1968

Martin Luther King Jr.

Martin Luther King Jr. in a 1964 photograph by Marion S. Trikosko
Marion S. Trikosko, 1964. U.S. News & World Report collection, Library of Congress. Public domain. Source crop; displayed at reduced size. Image source · License / status

Equal dignity, put into action

King’s commitment to nonviolence called for active resistance to injustice. It joined the demand for equal dignity with disciplined organizing, protest and a refusal to treat opponents as beyond humanity.

Nonviolence here is not passivity. King developed and practiced it with other organizers and communities, drawing on religious commitments and the example of Gandhi.

Read: Nonviolence · Stanford King Institute

FIRST-CENTURY JUDEA & GALILEE

Jesus of Nazareth

James Tissot painting of Jesus standing in a white robe and prayer shawl, one hand over his chest
James Tissot / Brooklyn Museum

Compassion beyond familiar boundaries

Jesus was a first-century Jewish teacher. In the Gospel of Luke, the Good Samaritan story attributes to him a teaching about responding to a stranger’s suffering with practical care.

This page considers the human historical setting and teachings attributed to Jesus in Gospel literature. Those accounts are religious texts, not modern transcripts. Theological beliefs about Jesus are distinct from the historical and ethical focus here.

A quality can inspire us while the full history remains open to study.

PROFESSOR MITCHELL’S REPORT CARD

SKILLTREE / INSPIRATIONS

Sources & image credits

This is Mitchell's personal inspiration board, not a ranking of anyone's worth. Historical context, documented public work and personal interpretation are distinguished on each page or report card.

Sources are linked alongside the relevant statements. James Ignatowich's report-card content also appears in the RPM buying guide. The RPM ambassador and commission disclosure remains on his report.

JohnKew's character is a fictional illustration inspired by his public interests. Big Bertha's drum-blocking scene is playful fiction, not a depiction of an actual event. Playback speeds are animation settings, not measurements of a real cannon.

Portraits identify the people discussed; no endorsement by them is implied. Credits and licensing details appear alongside each image.

HisWattson
Illustrative art for Skilltree. Independent appreciation; no affiliation or endorsement implied.

Medium Build
Original AI-assisted illustrative art for Skilltree, 2026. Fictional character styling; no endorsement implied.

Abraham Lincoln
Alexander Gardner, 1863. Public domain; restoration by Scewing. Displayed at reduced size, without further cropping. Image source · License / status

Martin Luther King Jr.
Marion S. Trikosko, 1964. U.S. News & World Report collection, Library of Congress. Public domain. Source crop; displayed at reduced size. Image source · License / status

Jesus of Nazareth
James Tissot / Brooklyn Museum. Our Lord Jesus Christ, 1886–1894. Public domain. Image source · License / status

Tom Segura
Photo: Zach Catanzareti Photo. CC BY 2.0; source crop by TaurusEmerald. Displayed at reduced size, without further cropping. Image source · License / status

Alex Rodriguez
Photo: D. Benjamin Miller, August 2, 2016. CC0. Source crop; displayed at reduced size, without further cropping. Image source · License / status