Difference between soliloquy and monologue:
 1.	The soliloquy is a speech delivered by a single person, who is alone on the stage
 2.	The monologue is a speech delivered by a single person, but it not supposed he/ she is alone on the stage

They are related to the lyrical poetry, in particularly with the sonnet. They talk about inner feelings and emotions of the character.

Utilitarianism: You have to create something useful. In Jeremy Bentham's opinion, nations have to alleviate people's sufferings or to create wealth.

Theory of evolution: The fittest to adapt to the contest survives.

Dramatic Monologue: A monologue that imports into its structure the features of drama.. 
	→ Idea of the character as a linguistic construction

Tennyson- Ulysses.
The character of Ulysses reflects the idea of the ideal Victorian traveler perfectly: he might be old physically, but he is very strong and skillful mentally. He has a great sense of values and has an infinite desire of knowledge.

The choice of the character is connected with the historical phenomenon  of colonization and imperialism and with the period of great explorers, as James Cook, David Livingstone and Henry Morton Stanley.