What can be said at all can be said clearly, and what we cannot talk about we must pass over in silence.
Lucidity adds beauty to profound thoughts.
Clarity is the good faith of philosophers.
Clarity is the politeness of the man of letters.
Truth and clarity are complementary.
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.
Your vision will become clear only when you can look into your own heart. Who looks outside, dreams who looks inside, awakes.