Here's a few that I like:
“Take stock of those around you and you will hear them talk in precise terms about themselves and their surroundings, which would seem to point to them having ideas on the matter. But start to analyze those ideas and you will find that they hardly reflect in any way the reality to which they appear to refer, and if you go deeper you will discover that there is not even an attempt to adjust the ideas to this reality. Quite the contrary: through these notions the individual is trying to cut off any personal vision of reality, of his own very life. For life is at the start a chaos in which one is lost. The individual suspects this, but he is frightened at finding himself face to face with this terrible reality, and tries to cover it over with a curtain of fantasy, where everything is clear. It does not worry him that his ‘ideas’ are not true, he uses them as trenches for the defense of his existence, as scarecrows to frighten away reality.” - José Ortega y Gasset
“The beginning of wisdom is to call things by their proper names.” – Chinese proverb.
"Those who know they are profound strive for clarity, those who would like to seem profound to the crowd strive for obscurity" – Friedrich Nietzsche
“Nothing appears more surprising to those, who consider human affairs with a philosophical eye, than the easiness with which the many are governed by the few; and the implicit submission, with which men resign their own sentiments and passions to those of their rulers. When we enquire by what means this wonder is affected, we shall find, that, as Force is always on the side of the governed, the governors have nothing to support them but opinion. It is therefore, on opinion only that government is founded; and this maxim extends to the most despotic and most military governments, as well as to the most free and most popular.” – David Hume
“He who has a ‘why’ to live for can bear almost any ‘how’.” ― Friedrich Nietzsche
“The universal order and the personal order are nothing but different expressions and manifestations of a common underlying principle.” - Marcus Aurelius
“The complexity of things — the things within things — just seems to be endless. I mean nothing is easy, nothing is simple.” – Alice Munro
“A human being is a part of the whole, called by us the ‘Universe’, a part limited in time and space. He experiences himself, his thoughts and feelings as something separated from the rest, a kind of optical delusion of his consciousness. This delusion is a kind of prison for us, restricting us to our personal desires and to affection for a few persons nearest to us. Our task must be to free ourselves from this prison by widening our circle of compassion to embrace all living creatures and the whole of nature in its beauty. Nobody is able to achieve this completely, but the striving for such achievement is in itself a part of the liberation and a foundation for inner security.” – Albert Einstein