Never feel sad on losing anything in your life, because when a tree loses its leaf, a new leaf is ready to take its place.

The power of philosophy floats through my head, light like a feather, heavy as lead.

Ideals are an imaginative understanding of that which is desirable in that which is possible

Nature is a mutable cloud which is always and never the same

We know the truth, not only by the reason, but by the heart

In order to be irreplaceable one must always be different.

Worry often gives a small thing a big shadow