To understand everything makes one very indulgent.

A religious life is a struggle and not a hymn.

In matters of the heart, nothing is true except the improbable.

Love is the emplem of eternity; it confounds all notions of time; effaces all memory of begining, all fear of an end.

Men err from selfishness; women because they are weak.

One must chose in life between boredom and suffering.

One must, in one’s life, make a choice between boredom and suffering.

Scientific progress makes moral progress a necessity; for if man’s power is increased, the checks that restrain him from abusing it must be strengthened.

Speech happens to not be his language.

The greatest happiness is to transform one’s feelings into action.

The human mind always makes progress, but it is a progress in spirals.