Language

1. Origin

1.1. Rousseau

1.1.1. Feelings

1.2. Kant

1.2.1. Thoughts

2. 5000-7000

2.1. dialects

2.2. languages

3. Encode

3.1. Secondary media

3.1.1. Visual

3.1.1.1. Braille

3.1.2. Auditory

4. Means

4.1. Human

4.1.1. Manual

4.1.1.1. Sign-language

4.1.2. Oral

4.2. Animal

5. Questions

5.1. represent feelings

5.1.1. Plato

5.1.2. Gorgias

6. System

6.1. Development

6.2. Acquisition

6.3. Maintenance

6.4. Communication

7. Study

7.1. Linguistics

7.1.1. Ferdinand De Saussure

7.1.2. Noam Chomsky

7.2. Philosophy

7.2.1. Wittgenstein