exhaustless

For maternal sympathy is exhaustless; be generous, and restrain, from that very reflection, the continual demand upon its flow.

The next thought was the impression that, no matter how many might covet it, it was exhaustless, and would last forever.

However, in spite of the difficulty of life, Val found it an exhaustless mine of interest.

The fields and woods and waters about one are a book from which he may draw exhaustless entertainment, if he will.

Here was food in exhaustless plenty; and here was weather benignant enough for any reasonable needs.