Aristotle:

Athenian Constitution
Categories
Metaphysics
Meteorology
Nichomachean Ethics
On Dreams
On the Gait of Animals
On Generation and Corruption
On Interpretation
On Longevity and Shortness of Life
On Memory and Reminiscence
On Prophesying by Dreams
On Sense and the Sensible
On Sleep and Sleeplessness
On Sophistical Refutations
On the Soul
On the Heavens
On the Motion of Animals
On the Parts of Animals
On Youth and Old Age, On Life and Death, On Breathing
Physics
Poetics
Politics
Posterior Analytics
Prior Analytics
The History of Animals
Virtues and Vices

Sir Francis Bacon:

Adversity
Anger
Atheism
Boldness
Cunning
Death
Discourse
Dissimulation and simulation
Empire
Envy
Goodness
Great place
Honor and reputation
Love
Nobility
Revenge
Seeming wise
Superstition
Truth
Unity in religion
Vicissitude of things
Wisdom for a man's self

Cicero:

Against Catiline
Against Vatinius
Against Verres
Divinatio against Q. Caecilius
For Aemilius Scaurus
On the Agrarian Law
For Archias
For Aulus Caecina
For Aulus Cluentius
For Cornelius Balbus
For King Deiotarius
For Ligarius
For Lucius Murena
For Marcellus
For Marcus Caelius
For Marcus Fonteius
For Marcus Tullius
For Milo
For Plancius
For Publius Quinctius
For Quintus Roscius the Actor
For Sestius
For Sextus Roscius of Ameria
For Sulla
In the Senate after his Return
On his House
On the Consular Provinces
On Pompey's Command
On the Responses of the Haruspices
Philippics
To the Citizens after his Return

Charles Darwin:

The Descent of Man
The Origin of the Species
Voyage of the Beagle

Frederick Douglass:

An Appeal to Congress for Impartial Suffrage
My Bondage and My Freedom
My Escape from Slavery
Narrative of the Life of Frederick Douglass
Reconstruction

Albert Einstein:

Letter to President Roosevelt
Relativity texts
Why Socialism?

Ralph Waldo Emerson:

Address (Divinity School Address)
American Scholar (The) 1837
Conduct of Life
The Conservative
English Traits html
Essays
Lecture On The Times
Literary Ethics
Man the Reformer
Method of Nature, The
Nature; Addresses, And Lectures
Philosophy of Academics
(The) Poet: An Essay
Representative Men
Self-Reliance (html)
The Transcendentalist
Uncollected Prose
The Young American

Sigmund Freud:

from "An Outline of Psycho-Analysis"
from "Leonardo Da Vinci and a Memory of his Childhood"
from "On Narcissism: An Introduction"
from "Repression" (1915)
from A Seventeenth Century Demonological Neurosis"
from "New Introductory Lectures on Psychoanalysis": Lecture 33: Femininity"
The Interpretation of Dreams
The Structure of the Unconscious: from "An Outline of Psycho-Analysis"

Herodotus:

The History of Herodotus

Sir Isaac Newton:

Optics
Principia

Henry David Thoreau:

A Plea for Captain John Brown
Civil Disobedience
Life Without Principle
Life Without Principle
Walden; or Life in the Woods

Thucydides:

History of the Peloponnesian War