Seek not a lighthouse greater than the human mind!

The demands of the science, of the ethics and of the reason are superior to the demands of the people!

Flowers are the beautiful hairs of the Mother Spring! Don't pluck them!

Even just seconds ahead is unknown; even just seconds after is open to infinite possibilities.

It is winter time! Feed the birds! Teach your children to feed the birds! Request your neighbour to feed the birds! Encourage your friends to feed the birds!

For a city to be beautiful, it must have a mysterious air!

A street without trees is a street only for the sick-minded people whose god is nothing but money!