4 sourced quotes by Baruch Spinoza on happiness & meaning of life, justice & rule of law, environment & sustainability, with a use case for each in GS4, Essay and interviews.
All laws which can be broken without any injury to another, are counted but a laughing-stock, and are so far from bridling the desires and lusts of men, that on the contrary they stimulate them.
The ordinary surroundings of life which are esteemed by men (as their actions testify) to be the highest good, may be classed under the three heads — Riches, Fame, and the Pleasures of Sense: with these three the mind is so absorbed that it has little power to reflect on any different good.