Our regular selection of quotes which have amused us or made us think. And this week we concentrate on the latter with some interesting perspectives.

People who think they know everything are a great annoyance to those of us who do.
[Isaac Asimov]

One should as a rule respect public opinion in so far as is necessary to avoid starvation and to keep out of prison, but anything that goes beyond this is voluntary submission to an unnecessary tyranny, and is likely to interfere with happiness in all kinds of ways.
[Bertrand Russell]

Everything has changed save our way of thinking, and thus we drift toward unparalleled catastrophe.
[Albert Einstein]

The history of liberty is the history of resistance. The history of liberty is a history of the limitation of governmental power, not the increase of it.
[Woodrow Wilson]

Affection and a calm mind are important to us. A calm mind is good for our physical health, but it also enables us to use our intelligence properly and to see things more realistically. Affection too is important because it counters anger, hatred and suspicion that can prevent our minds from functioning clearly.
[Dalai Lama]

The great enemy of clear language is insincerity. When there is a gap between one’s real and one’s declared aims, one turns as it were instinctively to long words and exhausted idioms, like a cuttlefish spurting out ink.
[George Orwell, Politics and the English Language, 1946]